All of these words are, as is the English language itself, constantly in a state of flux, and what is considered correct now may be viewed differently in 20 years. If you are concerned about choosing the word that is least likely to arouse someone’s usage hackles think ofalumnus & alum...
The meaning of ALUMNUS is a person who has attended or has graduated from a particular school, college, or university —usually used of a man in the singular but often of men and women in the plural. How to use alumnus in a sentence. Alumnus or Alumna?