What is the proper plural of the word "freshman"?
Both "freshmen" and "freshman students" are correct, but "freshmen students" is wrong. I think "freshmen" is the official term.
In Canada, or at least in the part of Canada where I went to school, you can also say frosh. The singular and plural are the same. It can also be used as an adjective, as in frosh week, the first week of the term when the frosh are introduced to the school (and local pubs).
You can also say "freshers", although I'm not sure if it's proper.