Definition of professor
1
: one that professes, avows, or declares
2a
: a faculty member of the highest academic rank at an institution of higher education
b
: a teacher at a university, college, or sometimes secondary school
c
: one that teaches or professes special knowledge of an art, sport, or occupation requiring skill
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Merriam-Webster unabridged
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Time Traveler for professor
The first known use of professor was in the 14th century
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