What does prof mean?
“Prof” is an informal English shortening of “professor.” It is used for an academic teacher in general conversation, casual writing, and workplace discussion, often with a tone that is familiar, conversational, or gently humorous. “My prof” and “a college prof” are typical constructions, while the abbreviated title “Prof. Patel” is more formal and commonly includes a full stop. The word can therefore function both as an everyday noun and as a respectful way to address someone. In British and American English, it is widely understood, although many speakers prefer the full word “professor” in official or formal situations. “Prof” should not be confused with “pro,” which is an abbreviation for “professional” and can also mean a position or argument in favor of something.
nounAn informal abbreviation for “professor,” especially in academic, workplace, or social contexts. It may also be used as a familiar form of address for a professor.
- An informal abbreviation for professor, especially in academic, workplace, or social contexts.
- A familiar form of address for a professor.
"Her prof encouraged them to apply for the summer research programme."
"She was a respected prof of medieval history before joining the university."
"My prof said the essay was much stronger than the one I had planned."
The standard plural is “profs.” An apostrophe form, “prof's,” is also seen informally but can be mistaken for the possessive singular.
"The profs organized a panel for prospective students."
One tiny syllable carries an entire academic career: “prof” is the classroom nickname for the person who knows the subject best.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does prof come from?
“Prof” developed as a clipped form of the English word “professor,” which was borrowed from Latin. The Latin “professor” derives from “professus,” a form of “profiteri,” meaning to declare or profess publicly. The same root also connects English words such as “profess,” “profession,” and “professional,” all of which refer in some way to an openly declared occupation, role, or expertise.
Related word forms
How prof is actually used
“Prof” is informal and is especially common in speech, casual writing, and academic communities. In formal contexts, “Professor” or the abbreviation “Prof.” is preferred; the lowercase form without a full stop is generally familiar or conversational.
Easily confused with prof
“Prof” is an informal short form of “professor,” whereas “pro” means a professional or an argument in favor of something.