Alumni, alumnus, alumna and alumnae are quite confusing particularly for students. Here are the meaning and the gender/sex based difference for masculine and the feminine, adopted or inherited from Latin.Posted Status in Education
Alumnus is singular for a male graduate (masculine).
Alumni is plural for male graduates (masculine).
Alumna is singular for a female graduate (feminine).
Alumnae is plural for female graduates (feminine).
Alumni collectively used for all genders/sex graduates either men women or a mixed group of both.