교수님이 · 교수님을
professor (polite)
Example
교수님께 이메일로 질문을 드렸어요.
I emailed my professor a question.
Word parts
교 teach+수 give
Literally 'teach-give' plus the honorific -님.
Good to know
Always add -님 when talking to or about your professor, and use 께 instead of 에게.
Related words