Other forms: proves
A prof is a university teacher of the highest rank, said informally. Ask the prof, my old prof, a visiting prof.
It is a clipping of professor and is friendly rather than disrespectful, though nobody writes it in a formal letter. The rank means different things by country: in Britain it is the top rank, and in America nearly every academic teacher is one.
1nounprofA university teacher of the highest rank, said informally.
“My prof said I could hand in my essay a day late.”
prof is a teacher.