Lecturer vs Professor

When to use each in English, with meaning, register, and examples.

 LecturerProfessor
MeaningA person who teaches at a college or university.A teacher at a college or university.
Registerformalformal
CEFR level-A2
Part of speechnoun
Usage notesUsed in academic contexts. Typically refers to teachers in higher education. Less common in casual conversation.Use 'professor' in academic and serious contexts. Avoid using it in casual or informal conversations about non-academic individuals.

Frequently asked questions: Lecturer vs Professor

What's the difference between "Lecturer" and "Professor"?

"Lecturer" means: A person who teaches at a college or university. "Professor" means: A teacher at a college or university.

When should I use "Lecturer" and "Professor"?

"Lecturer" is formal; "Professor" is formal.

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