ph.d. vs phd

Should I Write Ph.D. or PhD? (Complete Guide)

As some of you are probably aware, the kind of English used on my side of the pond (England) is sometimes a bit different to the English used in the land of burgers and Trump.

Some words are spelt differently. But others just have a few bits of grammar difference.

Today, I want to look at the difference between Ph.D. and PhD. We’ll look at which one is correct, what it stands for, and why it’s a bit odd that it stands for that.

Should I Write Ph.D. Or PhD?

It is correct to write both Ph.D. and PhD. Which one is best to use depends on where you are in the world. In Great Britain, they tend to use Ph.D. In the United States of America, they prefer to use Ph.D.

What Does Ph.D. Or PhD Stand For?

Let’s try to understand what Ph.D. stands for.

It stands for two things. And it doesn’t stand for one or the other, it stands for both of them at the same time.

The first thing is “Doctor of Philosophy” and the second is “Philosophiae Doctor”. As the eagle-eyed among you may have noticed, “Philosophiae” is not English. It’s in Latin.

This goes back to the days when the only people who needed university were high thinkers and philosophers.

Why Americans And Brits Disagree On Ph.D. Or PhD

This could help us to understand why Brits prefer PhD but Americans prefer Ph.D.

Perhaps, according to the Brits, it stands for “Philosophiae Doctor”. But, according to the Americans, it stands for “Doctor or Philosophy”.

After all, the Brits do have a habit of trying to sound smarter. But, whichever one you use, people on both sides should know what you’re saying.

Why Ph.D. Or PhD Is A Bit Strange

Now, I want you all to understand how strange it is to call anyone with a PhD a “doctor of Philosophy”.

Let’s say someone gets a Ph.D. in history.

Well, first of all, is she really a doctor? If you break your leg, she’s not the first person you’ll go to for help.

But not only that, she studied history, not philosophy. So, she’s called a doctor of philosophy despite not being a doctor and not having studied history.

Yet, for some reason, we still call her a “Doctor of philosophy”.

Where Does The Word “Doctor” Come From?

When most of us hear the word “Doctor”, we think of someone who makes us better when we’re sick. And there may be a few of you who think of a skinny man who travels through time in a Police Box.

But originally, “Doctor” was Latin for teacher. Through time, you were able to get a “PhD” in more things than just philosophy.

And, if you wanted to become what we think of as a “Doctor”, you would need to have a “doctorate” in medicine.

Technically, “Doctor” would be the wrong word. But it’s become so common, it’s managed to “common” itself enough to become the right word.

How To Get A Ph.D. Or PhD

Now I’m afraid you can’t just walk into a university and walk out with a PhD. There are steps you need to take before you get there.

First of all, you will need to do a Bachelor’s degree. This is the degree you do when you first enter university. There are some jobs where a bachelors is enough.

Let’s be honest here, most of the time you spend doing a bachelor is just having fun.

If you want to, you can then progress onto doing a master’s degree. This is a bit more high level, and you tend to need to work for it.

Once you have your bachelors you may decide to go on to get a PhD. If you go for this, you will be officially able to call yourself an intellectual.

What Kind Of Word Is Ph.D. Or PhD?

There are three ideas for what kind of word Ph.D. is. I’ll tell you all of them and let you make up your own mind.

A PhD is something you have. You work towards it, and once you’ve handed in all of your papers, you get a PhD.

A PhD is also something you are. If you have a PhD, you might say “I’m a PhD.”

It can also be a title, similar to “Sir” or “OBE”.

If your name is James Smith, and you are PhD, your name and title could be, Mr James Smith PhD.

How To Address Someone With A Ph.D. Or PhD

Talking of this man called James Smith, there are several ways to address and introduce him.

• If you have a Ph.D., you are allowed to call yourself “Doctor” even if you don’t have a PhD in medicine. Therefore, if he wants, James could be called Dr Smith.
• Maybe he doesn’t want to be confused for a medical doctor but still wants to show off his Ph.D. In that case, we can call him James Smith PhD.
• But, like many with a Ph.D., he may not want to mention it unless it’s important. If he’s one of these people, we should just call him Mr Smith.

Ph.D. Or PhD Vs Doctorate

Asking “What’s the difference between a PhD and a doctorate?” is a bit like asking what the difference is between an apple and a fruit.

Just like an apple is a kind of fruit, a PhD is a kind of doctorate. However, it’s not the only doctorate there is.

Here are some forms of doctorate you may want to know.

Doctor of philosophy. But now also means Doctor of something there isn’t a doctorate for.

Doctorate in business.

Doctorate in engineering.

Doctorate in education

Doctor of medicine.

If you were wondering whether you should write “PhD” or “Ph.D.”, you can write either, both are grammatically correct, and both are very common terms that mean the same thing.

The only slight difference is that “PhD” is more common in England and “Ph.D.” is more common in America. This is perhaps because the British believe it stands for “philosophiae doctor” but Americans see it as “Doctor of Philosophy”.

But, no matter whether you use “PhD” or “Ph.D.”, to have one, you neither need to be a doctor nor study philosophy. All you need to do is stay in university for long enough to be able to get yourself a PhD. Then, you can become a PhD, and your title will be PhD.

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Table of Contents

Research (academic), applied (professional), what is a ph.d., is a ph.d. higher than a professional doctorate, doctoral study vs. dissertation, who is it for, what do you learn in each, can a ph.d. be called a doctor, the bottom line, what’s the difference between a ph.d. and a doctorate, are ph.d. and doctorate terms interchangeable, what are examples of other doctorate degrees besides a ph.d., do ph.d. and doctorate programs have different structures or requirements, which is more academic-focused: ph.d. or other doctorate degrees, can ph.d. holders and other doctorate degree holders use the title “dr.”.

The terms Ph.D. and Doctorate are often used interchangeably when considering advanced degrees in academia. Both degrees involve rigorous academic study and research, but their focus, duration, and requirements differ. Hence, these significant differences between the two are worth understanding before deciding which path to pursue.

In this article, we will explore the difference between a Ph.D. and a doctorate, including their definitions, the types of programs they are offered in, and the career opportunities they lead to.

What Is a Doctorate?

A doctorate degree is the highest level of academic degree that can be awarded by a university. It typically requires a minimum of three to five years of advanced study and research beyond a bachelor’s or master’s degree .

Doctoral programs are designed to prepare individuals for advanced careers in academia, research, or other professional fields. There are two main types of doctorates: Research (Academic) and Applied (Professional). Let’s talk about each in more detail.

A research doctorate, also known as an academic doctorate, is a type of doctoral degree focused on original research and advancing knowledge in a specific academic field. These programs require students to take advanced coursework in their field and complete original research contributing to the body of knowledge in their study area.

The research component is typically the program’s centerpiece, and students are expected to produce a dissertation or thesis that represents a significant contribution to their field of study. A research doctorate is highly valued in academia, and graduates often pursue careers as professors, researchers, or scholars in their field.

While a significant time commitment and dedication are required, they provide individuals with the skills and knowledge necessary to make contributions to their field and advance their careers in academia. Examples of research doctorates include the Doctor of Philosophy (Ph.D.), Doctor of Science (D.Sc.), and Doctor of Education (Ed.D.) , among others.

An applied doctorate, or professional doctorate, is a type of doctoral degree that focuses on applying knowledge and skills in a specific profession or industry. These programs emphasize the practical application of research and theories to solve real-world problems in their field.

The curriculum includes coursework designed to enhance students’ professional skills, including leadership , management, or organizational behavior. An applied doctorate program’s capstone project or dissertation addresses a real-world problem or issue within the student’s profession or industry. The research is conducted in collaboration with professionals in the field.

While applied doctorate programs require a significant time commitment and dedication to a specific profession, they provide individuals with the knowledge and skills necessary to become experts in their field and make a great impact. Graduates of such programs are well-prepared to take on leadership roles in their profession. The degree can lead to higher salaries and career advancement.

Examples of applied doctorates include the Doctor of Education (Ed.D.), Doctor of Business Administration (DBA), and Doctor of Psychology (Psy.D.), among others.

Students who have completed advanced studies in a particular academic field and contributed original research to that field are awarded a Ph.D., also known as a Doctor of Philosophy. Ph.D. programs are geared toward developing independent scholars who can conduct original research and advance knowledge in their chosen fields.

The coursework of a Ph.D. program involves advanced studies in the student’s area of interest, coupled with a significant research component. Students must produce a dissertation or thesis that adds to the existing body of knowledge in their field of study.

Ph.D. programs generally require multiple years to complete and lead to opportunities for graduates to work as professors, scholars, or researchers within their field of specialization.

While Ph.D. degrees are commonly associated with academic careers, they can also offer advantages for graduates seeking positions in government or industry, as they demonstrate expertise in a specific area and an aptitude for original research.

Comparing a Ph.D. to a professional doctorate is difficult, as both degrees have distinct characteristics and are designed for different purposes.

A Ph.D. is primarily a research-focused degree focused on producing independent scholars who can conduct original research and contribute to the advancement of knowledge in a particular field.

On the other hand, a professional doctorate focuses on the application of knowledge and skills in a specific profession or industry. These programs typically emphasize the practical application of research and theories to solve real-world problems in their field.

Graduates of professional doctorate programs are well-prepared to take on leadership roles in their profession, and the degree can lead to career advancement and higher salaries.

So, in terms of purpose and focus, Ph.D. and professional doctorate degrees are different. It’s not a matter of one being higher than the other, but rather, it depends on an individual’s career goals and aspirations. Both degrees are considered terminal degrees, meaning they represent the highest level of academic achievement in their respective fields.

The Difference Between a Ph.D. and a Doctorate

Understanding the differences between a Ph.D. and a professional doctorate can help you make an informed decision about which program is right for you and your career goals. And while both types of degrees require extensive study and research, there are significant differences between the two.

One of the key differences between a Ph.D. and a professional doctorate is the focus of the doctoral study. Ph.D. programs typically focus on producing independent scholars who can conduct original research and advance knowledge in their chosen field.

In contrast, professional doctorate programs emphasize the practical application of research and theories to solve real-world problems in their field.

While both degrees require extensive research, Ph.D. programs often require a significant original contribution to the field in the form of a dissertation, while professional doctorate programs typically require a capstone project or applied research project that demonstrates the student’s ability to apply their knowledge to a real-world problem.

Ph.D. programs are geared toward individuals interested in pursuing an academic career, such as becoming a professor or researcher. These programs prepare students for a life of scholarship and original research.

On the contrary, professional doctorate programs are geared toward professionals already working in a specific profession or industry and wanting to advance their careers through further education. These programs provide students with the knowledge and skills needed to take on leadership roles in their profession or industry.

The content of the curriculum in Ph.D. and professional doctorate programs differs significantly. Ph.D. programs aim to give students extensive knowledge of their field of study and equip them with the skills to conduct original research.

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On the other hand, professional doctorate programs have a practical focus, with students taking courses that prepare them for leadership positions in their respective professions or industry, including management, ethics , and professional communication.

The title “Doctor” is used to refer to someone who has earned a doctoral degree, whether it is a Ph.D. or a professional doctorate. In academic and professional settings, it is common for individuals with a Ph.D. to be referred to as “Dr.” along with their name, just as someone with a professional doctorate would be.

However, it’s important to note that the title “Doctor” does not necessarily indicate that the person is a medical doctor or a physician. Additionally, it is worth noting that different countries and cultures have different conventions for how the title “Doctor” is used, so it’s always a good idea to check local customs and norms to ensure proper usage.

The decision to pursue a Ph.D. or a professional doctorate ultimately depends on your individual career goals and aspirations. Both degrees are highly respected and can lead to exciting and fulfilling careers.

Remember, the pursuit of advanced education is a challenging but rewarding journey that leads toward new opportunities, personal growth, and the chance to make a positive impact in your field.

Frequently Asked Questions (FAQs)

A Ph.D. is one type of doctorate degree but not all doctorate degrees are Ph.Ds. Ph.D. stands for Doctor of Philosophy and is typically research-focused , while a doctorate encompasses a broader range of degrees.

Not exactly. People often use “ Ph.D. ” colloquially to refer to any doctoral degree, but strictly speaking, a Ph.D. is a specific type of doctorate degree focused on original research.

Other doctorate degrees include Doctor of Education (Ed.D.), Doctor of Business Administration (DBA), Doctor of Psychology (Psy.D.), Doctor of Nursing Practice (DNP), and many more depending on the field of study.

Ph.D. programs emphasize research and typically require a dissertation based on original research. Other doctorate programs may have different requirements, such as applied projects, clinical practice, or professional portfolios , depending on the field .

Ph.D. programs are often considered more academically rigorous and research-oriented compared to professional or practice-based doctorate programs, which may focus more on applied knowledge and skills.

Yes, both Ph.D. holders and other doctorate degree holders are entitled to use the title “ Dr. ” as a prefix to their name. This title denotes their attainment of a doctoral degree in their respective field of study.

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PhD or Ph.D? Which is correct?

PhD and Ph.D are both correct ways to indicate the title, or honorific, of a doctor. However, Ph.D isn’t nearly as common as PhD. In fact, Ph.D is an old-fashioned method of writing it. But, there’s nothing wrong with using it that way. However, it’s more visually correct and recognizable in the modern world as PhD.

So, while there aren’t really any rules to remember for using PhD or Ph.D, it’s important to understand what it means. Plus the history of it will give you a little trivia.

Ph.D History

The earliest known documented use of Ph.D is from 1869. It’s an abbreviation of the Latin phrase, “Philosophiae Doctor” or “Doctor of Philosophy.” But “Philosophiae” has roots in ancient Greek, which translates into “love of wisdom.” To call someone a “doctor” is another way to say “learned person.”

Therefore, “Philosophiae Doctor” translates in literal terms to “love of wisdom by a learned person.” This can span a host of arts and sciences including medicine as well as biology, history, literature, sociology, politics, and many more.

The title PhD is the more common version in modern times and it means the same thing. These are people who receive doctorate degrees, which is the highest level of education someone can get. As it was back in 1869, the placement of the honorific can be before or after a name.

Examples of both PhD and Ph.D

The examples below show the myriad of ways in how to use and where to place PhD or Ph.D as an honorific for a person.

Dr. Ken Wellington, PhD

Marybeth Alistair, Ph.D., DDS

Professor Cynthia Kline, PhD

Michael Derringer, Ph.D., MD

You may notice additional acronyms after the use of Ph.D. This is the more common way to use it when you’re listing someone’s name and credentials. It’s frequent to see this in places like convention programs, office boards, or in newspapers. The DDS is Doctor of Dental Surgery and MD is Doctor of Medicine.

In many cases, doctors will have other degrees of study alongside their doctoral education. These additional honorifics indicate that.

Both PhD and Ph.D are correct when referring to the title of a doctor. These are almost always for writing purposes. You would never call a doctor PhD. It’s similar to how you would use Mr., Mrs., or Ms. before someone’s name.

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Doctorate vs PhD: What’s the Difference?

Quick Highlights:

• All PhDs are doctoral degrees, while not all doctorates are PhDs.
• Both are doctoral degrees, but a PhD is specifically academic and focused on original research.
• Professional doctorates (like an Ed.D, M.D., DBA) are applied and tailored to specific professions.
• In most cases, you’ll need to complete a bachelor’s and a master’s degree before pursuing a doctoral degree.

The difference between a doctorate and PhD is one of categorical grouping. Simply put, a doctorate is an umbrella term for an advanced degree beyond that of a master’s degree. In other words, all PhDs are doctorates, while not all doctorates are PhDs. Here’s a simple graphic to help you visualize the concept:

In other words, a PhD–which stands for Doctor of Philosophy–is a special kind of doctorate degree, while a doctorate degree refers to the higest degree available in various fields. So a PhD is a doctorate, but a doctorate is not necessarily a PhD.

The distinction between a PhD and a Doctorate can be quite meaningful depending on your academic and professional goals. So read on to learn about the various types of doctoral degrees, the difference between them, and why they’re important.

Related:  How to Prepare for your Graduate School Interview

What Is a Doctoral Degree?

A doctoral degree is a general term for a terminal degree that usually is awarded when someone pursues their studies beyond the level of a bachelor’s and a master’s degree. Doctoral degrees can be awarded in any number of fields, from education and English literature to chemistry and calculus.

Doctoral degrees typically come in two forms:

• a professional (also known as applied doctorate)
• an academic doctorate

Related: What is a Terminal Degree?

What is an Applied Doctorate Degree?

Professional or applied doctorate degrees qualify someone to work in a specific profession. This includes things like:

Doctor of Medicine (M.D.)

Doctor of Business Administration (DBA)

Doctor of Education (Ed.D.)

Degree holders with a professional doctorate degree are qualified to work at the highest level within their field. 

These professional degrees require academic research. It will culminate in a dissertation which must be defended in front of a group. A dissertation, like a thesis, is a lengthy and involved paper that incorporates research and applies a theory to make advances within the field.  

Some of the most common fields for a professional doctoral program are:

• Physical therapy
• Osteopathic medicine
• Occupational therapy
• Educational leadership
• Medicine 

We’ll discuss a few of the most common professional doctorate degree programs below.

Related: What Is The Difference Between College and University?

An Ed.D. is a professional doctorate for educators with teaching and administration responsibilities as well as those working in nonprofits and governmental agencies. These programs offer advanced leadership training which can help students advance their career. Students learn effective strategies to solve real-world problems they’ll encounter out in the field.

Ed.D. programs do not follow a standard curriculum. Each program is unique, and many can be tailored to meet the needs of each individual student. Some are offered online while others follow a more traditional format.

Doctor of Business Administration

The DBA is a professional degree for business professionals. These programs build upon the skills taught in an MBA program. Students are often accomplished executives who want to be better, more innovative business leaders.

DBA students conduct practical research that directly applies to the business world. Students will develop new insights and solutions to business challenges.

Doctor of Psychology (PsyD)

Psychology is an area where students can choose to complete either a Ph.D. or a PsyD degree. A PsyD degree emphasizes the clinical and applied aspects of psychology. This degree is growing in popularity for several different reasons:

• Completion time is often less than a traditional PhD
• Specialization options
• Opportunity to complete a dual degree (MSW or MPH are popular)

The PsyD focuses on practice over research so students begin working on fieldwork sooner in the program. This hands-on experience is valuable as students begin to build their professional portfolio.

Related: Best Online Doctorates in Psychology

An M.D. is the degree of choice for students planning a career in medicine. These highly competitive and rigorous programs include the classroom and intensive training students need to join the medical field.

M.D. programs usually require students to complete four years of medical school followed by a residency. The residency can take between two and five years depending on the area of medicine.

While an M.D. degree requires a significant commitment of time and money, the investment plays off with a high salary and job security.

Doctor of Optometry (O.D.)

An O.D. an expert in primary eye care. They diagnose and manage diseases and disorders of the eye. An O.D. degree can take between eight and nine years of education beyond high school. Students take classes in areas like:

• gross anatomy
• neuroscience
• biochemistry

An optometrist can determine if an individual needs corrective lenses or contacts to improve their vision. They can check for signs of glaucoma or other degenerative eye conditions. In some states, an optometrist can prescribe certain medications.

Regardless of the individual field that you pursue, you can know that a doctoral degree will make you a highly qualified candidate for upper level positions in your field. 

What Is a Doctor of Philosophy (Ph.D.) Degree?

Academic doctorates, on the other hand, are degrees that qualify someone to study, research, or teach at the highest level in his or her field. At some schools, like Franklin University, professional doctorates are referred to as an application oriented-degree while Ph.D.s, or academic doctorates, are referred to as research degrees. 

A Ph.D. is actually a specific type of doctoral degree. This means that rather than being completely separate from one another, Ph.D.s are really just a specific subtype of the umbrella term “doctorate degree.” 

A Ph.D. is an academic degree focused on original research and the application of new ideas to existing knowledge. This research based degree emphases research skills that allow student to contribute to the advancement of their field. Lots of people falsely believe that a Ph.D. is limited to fields in the social sciences. This is likely due to the word “philosophy” in the title. Rather than meaning philosophy in the modern sense, though, the word philosophy in a Ph.D. refers to its Latin origins, meaning “love of wisdom”. 

The reality is that Ph.D.s are research degrees available in many fields. Some of the most common degree fields for a Ph.D. include:

• Applied mathematics
• Accounting and finance
• Biomedical engineering
• Chemical engineering 
• Clinical psychology
• Computer science
• Counseling psychology
• Data analysis

No matter what kind of Ph.D. you undertake, you will always graduate from a Ph.D. program with a high level of competence, respect, and mobility within your career field. 

How To Apply for a PhD vs Doctorate Program

Once you’ve made the choice between a professional degree versus doctorate , you’ll need to figure out how to apply to your chosen program. Because Ph.D. programs are simply a specific type of a doctorate program, the application process varies more by school than it does by degree type. 

In general, when you apply to a doctoral program, you’ll need to have already completed a bachelor’s and a master’s degree. In many cases, your bachelor’s degree can be in any field. It does not need to be related to the field you’re pursuing at the professional level. In most cases, your master’s does need to be related in some way. 

If it’s not, there’s a strong likelihood that you’ll need to complete some prerequisite graduate-level classes before you can apply for your doctorate program. You’ll need to check with each program about the prerequisites before you apply. 

Once you’re sure that you meet the prerequisites required of a doctoral student, you’ll also need to get your application materials. Generally this means:

• transcripts from your undergrad and graduate school coursework
• letters of recommendation
• an essay or statement of purpose
• recent GRE or GMAT scores

Again, application requirements will vary by school so you’ll want to check directly with those you’re applying to. 

PhD vs Doctorate Degree: Which is Longer?

The amount of time it takes to complete your doctorate vs PhD degree will largely depend on what work you’ve done before it, and whether you’ll be pursuing it part-time or full-time. If you have completed a master’s in the field already, you will need to complete fewer credits to complete the doctoral degree. 

At some schools, there is an option to combine your master’s with your doctorate degree. These accelerated programs usually allow you to take a year of study off your total commitment.

Still, terminal degrees are no small time commitment. Most degrees take anywhere from five to eight years to complete when pursued full-time. In general, Ph.D. programs tend to take slightly longer than professional doctorates. For example, to complete a doctor of education (Ed.D.) degree, doctoral students must complete at least 60 credits. In contrast, Ph.D. students completing a Ph.D. in Education must complete 90 credits. 

Earning Potential of a Professional Doctorate vs PhD

While a professional doctorate and a Ph.D. are seemingly very similar, they do differ in terms of earning potential. 

This is likely because many Ph.D. programs lead to careers in teaching or research. These are two fields that are notoriously low in funding, unless you find one of the relatively less common highly paid positions in these fields. 

According to the Bureau of Labor Statistics, the average salary for a postsecondary teacher at colleges or universities is about $80,000. The average salary of postsecondary teachers in the field of scientific development and research is more, at nearly $110,000, and the average salary of a researcher in the field of medical science is nearly $90,000. 

Compare these salaries to those of professional doctorates like a medical doctor or a lawyer. A medical doctor earns an average salary of $208,000 while a lawyer receives an average salary of roughly $123,000. 

Doctoral Degree vs PhD: How Do They Stack Up?

While a Ph.D. is simply a subtype of doctorate, there are some distinct differences that set it apart from professional doctorate degrees. 

While Ph.D.s are typically heavy on research, professional doctorates are heavy on application of knowledge to a specific professional field. The body of knowledge developed in a Ph.D. program may be slightly broader, while the knowledge built in a professional doctorate program is tailored more directly to a specific career. 

Both programs have similar application processes, but the Ph.D. program may take slightly longer to complete on average than the professional doctorate program does. Finally, professional degree PhD program graduates tend to earn slightly more than Ph.D. graduates. 

If you’re interested in pursuing a doctorate degree, you’ll need to consider a professional doctorate degree vs PhD. You’ll want to research your programs before applying. Sites like CollegeRank can help you to narrow your options by providing curated college rankings geared to a number of different factors, from campus size to return on investment, and more. 

What kind of research is required in a PhD compared to a professional doctorate?

According to the Council of Graduate Schools , A PhD requires students to conduct original research that contributes new theoretical insights to their academic field. This often involves extensive data collection, hypothesis testing, and the development of a dissertation that advances academic understanding in your chosen area of focus.

In contrast, professional doctorates focus on applied research , which is aimed at solving practical problems in a professional context. Instead of a dissertation, professional doctorate students typically complete a capstone project or applied research paper that addresses real-world issues within their field.

Which type of degree is better suited for someone interested in teaching at the university level?

A PhD is generally better suited for those looking to pursue a career in academia or research, especially in tenure-track university teaching positions. Universities typically prefer candidates with a PhD for roles that involve teaching, mentoring graduate students, and conducting research. However, professional doctorates can also be valuable for teaching, particularly in fields like education or business where applied knowledge is critical.

Do professional doctorates take less time to complete than PhD programs?

Professional doctorates, such as EdD or DBA, often take less time to complete compared to PhD programs. PhDs typically require 4-7 years due to extensive research and dissertation work, while professional doctorates usually take 3-6 years. Although with the introduction of accelerated doctoral programs, these timelines will vary depending on the university that you choose.

Can someone with a professional doctorate still contribute to academic research?

Yes, individuals with professional doctorates can contribute to academic research, particularly in applied fields, but the focus of their research is typically on solving real-world problems rather than advancing theoretical knowledge.

Is a PhD or a Doctorate degree more recognized in non-academic careers?

Professional doctorates are more recognized in non-academic careers due to their focus on applying knowledge to professional practice. A PhD , while respected, is generally more suited for academic and research roles.

“M.D.” vs. “Ph.D.” vs. “Dr.”: Are They Synonyms?

Quick: when you hear the word doctor , what do you picture?

Most would probably describe someone in a white lab coat with a stethoscope hanging around their neck or someone in medical scrubs—someone you would seek out if you have a deep cut that needed stitches.

That word doctor , however, is a title assigned to many who don’t come close to that description, many of whom you wouldn’t want stitching up that cut. Take your English professor, for instance. No offense, Dr. Barrett. 

It can all be a bit confusing, which is why it’s important to know who and why someone might be called a doctor , as well as what all those initials and abbreviations after their name mean. Here we break it all down.

What does Dr. mean?

Let’s start with doctor or D r . for short. While the first definition of the word is “ a person licensed to practice medicine,” that doesn’t mean you want to take medical advice from anyone who calls themselves a doctor . There are many looser definitions of the word that follow and, frankly, make things a bit confusing.

For example, the third definition is older slang for a “cook, as at a camp or on a ship,” while the seventh entry is “an eminent scholar and teacher.” Bugs Bunny didn’t help matters either by plying anyone and everyone with his famous greeting,“What’s up, doc?” 

The term doctor can be traced back to the late 1200s, and it stems from a Latin word meaning “to teach.” It wasn’t used to describe a licensed medical practitioner until about 1400, and it wasn’t used as such with regularity until the late 1600s. It replaced the former word used for medical doctors— leech , which is now considered archaic. 

WATCH: When Did The Word "Doctor" Become Medical?

Physician vs. doctor : are these synonyms.

While the term physician is a synonym for doctor , it’s typically used to refer to those who practice general medicine rather than those who perform surgery, aka surgeons . 

A quack , on the other hand, is defined as “ a fraudulent or ignorant pretender to medical skill.”

What does M.D. mean?

Moving on to initials that carry more weight than a nod from Bugs, let’s look at M.D.s .

M.D. , which can be used with or without the periods ( M.D. or MD )  is the designation for a medical doctor. This is earned by attending medical school (typically a four-year program after completing at least one undergraduate degree, plus a residency program), and learning to diagnose patients’ symptoms and offer treatment. 

The initials M and D stem from the Latin title  Medicīnae Doctor. There are many different types of doctors, with different specialties, but if you have a physical ailment, visiting a doctor with the initials M.D. is a good place to start.

Specialty doctors may add even more initials to their title, such as DCN (doctor of clinical nutrition), DDS (doctor of dental surgery), or countless others they acquire with additional training. To make things even more confusing, some may add abbreviations from medical associations they belong to, such as FAAEM (Fellow of the American Academy of Emergency Medicine). 

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What does Ph.D. mean?

As for Ph.D. , this stands for “doctor of philosophy.” It stems from the Latin term Philosophiae Doctor.

You can get a Ph.D. in any number of subjects, from anthropology to mythological studies. It’s not an easy feat, however, as to earn one, you must do original research and write a dissertation . 

Ph.D. vs. M.D .: are these synonyms?

There are two big differences between Ph.D. s and M.D .s. When it comes to medicine, M.D.s can prescribe medications, and Ph.D.s can’t. And yes, it’s possible to be both an M.D. and a Ph.D. In fact, some med schools offer programs in which you can achieve both simultaneously. 

You can also get a professional doctorate degree in a number of fields. For example, you might receive a doctorate of education, an  Ed.D . 

So, in a nutshell, both M.D.s and Ph.Ds can be referred to as doctors . If you’re looking for someone to treat what ails you physically, then you want at least an M.D. following their name. If you want to dig deep into a subject and get advice from someone who has done their own research and who likely knows the latest and greatest developments in a particular area, then you’re probably looking for a Ph.D. And if someone has both, even better—depending on your needs, it may be just what the doctor ordered.

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What Is the Difference Between a PhD & Doctoral Degree?

The title "doctor" applies, technically, to anyone who has earned any doctoral degree. It originally meant a learned person, an expert in any field, and in that sense modern higher education has formalized the term. (See Reference 1.) A Ph.D., or doctor of philosophy, degree is one of a number of type of doctoral degrees; the difference between it and other doctorates concerns primarily the focus and methods of study.

Ph.D. Degree

Holders of the Ph.D. do not necessarily study philosophy, despite the degree's name. Institutions award Ph.D.'s in a number of fields, including the humanities, the hard sciences, the social sciences and education. The U.S. Department of Education's International Affairs Office calls the Ph.D. and other research doctorates "the highest academic qualification" in American education. (See Reference 2, p. 1.) According to the National Science Foundation's annual Survey of Earned Doctorates, Ph.D.'s constituted the overwhelming majority of research degrees in 2008: 45,341, or 92.9 percent. (See Reference 3.) Most holders of Ph.D.'s pursue academic careers as college professors, scholarly writers and researchers, although some, notably psychologists, pursue clinical practice.

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The Survey of Earned Doctorates lists the second-most popular research doctorate as Ed.D., doctor of education, which accounted for six percent of such doctorates awarded in 2008. (See Reference 3.) An array of other fields offer specialized doctoral degrees, such as D.P.H., doctor of public health, or Th.D., doctor of theology. (See Reference 2, p. 1.) Most of these destine the recipient for academic careers, but like the Ph.D., some also offer clinical careers, such as the D.S.W., doctor of social work. In common parlance, when a graduate student says she is pursuing a "doctorate," she means a Ph.D. or another of these research degrees.

M.D. Degree

One specialized type of program awards fewer than half as many doctoral degrees as Ph.D.'s alone, yet it is the only field to commonly claim the title "doctor" in popular culture: M.D., doctor of medicine. In 2006, according to the National Library of Medicine, American medical schools awarded 19,000 M.D. degrees. (See Reference 4.) The focus of preparation for an M.D. is clinical practice, rather than academic research; such degrees require extensive practical experience and an internship. Medical students typically do not refer to their studies as "doctoral" work, however, although the degree entitles them to the title "doctor."

Lawyers also earn a type of doctoral degree, though they rarely use the title "doctor." Law schools award the J.D., or "juris doctor," degree, meaning "doctor of law" in Latin. The Law School Admission Council advises would-be lawyers that the J.D. is almost universally required in the U.S. in order to take the bar exam, a standardized state-by-state test. (See Reference 5, p. 2.) The emphasis is on practical research over academic pursuits. Most lawyers -- 75 percent, according to the Law School Admission Council -- work in private practice, while only one percent are law school educators. (See Reference 5, p. 2.) The American Bar Association reports 43,588 law degrees awarded in the 2008-2009 academic year, though that total includes the relatively rare undergraduate degree of LL.B. -- Bachelor of Laws -- as well as the J.D. (See Reference 6.)

• The Oxford Dictionary of Phrase and Fable: Doctor; Elizabeth Knowles
• U.S. Department of Education International Affairs Office: Structure of the U.S. Education System, Research Doctorate Degrees
• American Bar Association: Enrollment and Degrees Awarded, 1963-2010 Academic Years
• Work-Based Learning e-Journal: Perspectives on Professional Doctorate Education in the United States; Bridget N. O'Connor
• U.S. Department of Education National Center for Education Statistics: Digest of Education Statistics, Fig. 1, The Structure of Education in the United States

Jennifer Spirko has been writing professionally for more than 20 years, starting at "The Knoxville Journal." She has written for "MetroPulse," "Maryville-Alcoa Daily Times" and "Some" monthly. She has taught writing at North Carolina State University and the University of Tennessee. Spirko holds a Master of Arts from the Shakespeare Institute, Stratford-on-Avon, England.