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Definition of professor

professor

/prəˈfɛs.ər/
pro · fes · sor

Adverb:professorially
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Plural:professors
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Adjective:professorial
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professor Lexical Profile

professor Game Scores & Validity

• noun

1

A faculty member of the highest academic rank at an institution of higher education, or (especially in North America) a teacher of any rank at a college or university.

Example

"The history professor assigned three primary source documents for next week's seminar."


2

A person who openly declares, affirms, or avows a particular religious faith, allegiance, or principle.

Example

"Throughout his writings, he remained a steadfast professor of humanist ideals."

Synonyms
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Antonyms
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Word Nuance & Usage

In North American usage, 'professor' is commonly applied to almost any college or university instructor, whereas in British and Commonwealth English, the title is strictly reserved for the highest senior academic rank (equivalent to a 'full professor' in the United States).

• Rhymes for professor

Word Origin & Etymology

Borrowed in the late 14th century from Old French 'professeur' and directly from Latin 'professor' ('one who publicly claims to be an expert in an art or science'), an agent noun from 'profiteri' ('to declare openly, avow').

Cite this Entry


Wordmom. (2026). Definition of Professor. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/professor
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