is a Latin word regularly used in Italian. It means male former student
or graduate student from one university or a college
is the plural and it is used for groups of male or male and female students together. When speaking about a female student we use the feminine Alumna and the plural becomes Alumnae.
These Latin words are regularly used in English maintaining the same meaning, but the pronunciation is different. Listen to the English pronunciation of Alumnus
, Alumna, Alumnae