How to say "some" in french

Question

What would "some teacher" be in french if not -"un professeur"?If it was "some teachers", It would have been ... something else?

Accepted Answer

No, you wouldn't use un in this context but certains if you mean to say some (specific) teachers.
Some teachers didn't show up. -- Certains enseignants ne sont pas venus.
Note, however, that this meaning of "some" is different from "several" or "a few".

Answer

Well, I would disagree, as "some" is regularly used in America as a slightly disparaging form of "a".  As in: "Is Mary dating any one ?  Yeah, she's going out with some teacher."

Answer

Well, I would disagree, as "some" is regularly used in America as a slightly disparaging form of "a".  As in: "Is Mary dating any one ?  Yeah, she's going out with some teacher."

Answer

If the question implies some specific teacher, it would be great to add this information as a hint. I agree with David that in English "some" can easily be perceived as a form of "a".