
der Prof
prof
Informal short form of professor; a person who teaches and conducts research at a university or college.
Unser Prof in Mathe hat die Vorlesung heute ausfallen lassen.
Our math prof canceled the lecture today.
prof
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prof
Informal short form of professor; a person who teaches and conducts research at a university or college.
Unser Prof in Mathe hat die Vorlesung heute ausfallen lassen.
Our math prof canceled the lecture today.
'Prof' is the informal short form of the word 'Professor' (professor). The masculine gender 'der' is taken from the longer word.
Hast du die E-Mail von unserem Prof gelesen?
Did you read the email from our prof?
The word 'Prof' is used almost exclusively by students in everyday university life. It is very informal and typical of spoken language.
Der Prof hat die Abgabefrist für die Hausarbeit verlängert.
The prof extended the deadline for the term paper.
'Prof' is often used in connection with a subject or an exam. Typical phrases are 'der Prof für [Fach]' (the prof for [subject]) or 'eine Prüfung beim Prof haben' (to have an exam with the prof).
Ich muss morgen eine Präsentation bei meinem Geschichts-Prof halten.
I have to give a presentation tomorrow for my history prof.
lecturer
Both words can refer to a person who teaches at a college or university. „Prof“ is the informal short form of Professor or Professorin and presupposes this title, while „Dozent“ primarily describes the teaching role. Use „Prof“ when referring to the title and „Dozent“ when the teaching is the main focus.

Der Prof erklärt heute die Ergebnisse seiner Forschung.
The prof is explaining the results of his research today.
Der Dozent erklärt heute die Aufgaben im Seminar.
The lecturer is explaining the assignments in the seminar today.