Alumnus is the singular reference for a male graduate; alumna, the singular reference for a female graduate; alumni, the plural reference to a mixed group of male and female graduates or male graduates only; alumnae, the plural reference for female graduates only. Follow similar use for emeritus.
The following spellings are preferred:
Advisor (not adviser)
Catalog (not catalogue)
Course work (not coursework)
Website (not web site)
Database (not data base)
Fund-raising, fund-raiser
Healthcare
Kickoff (noun or adjective); kick off (verb)
Theatre (when referring to the department or discipline)
Workplace (not work place)