alma mater
Alma mater (noun) means the school, college or university a person attended. Example: “He returned to his alma mater to give the address.”
How to use alma mater
Learner’s notesIn plain EnglishThe school or university you went to.
Slightly formal; normally lower case and unitalicised in modern English.
Fill the gap
Can you complete this real example?
He returned to his _____ to give the address.
Etymology
From Latin, literally "nourishing mother" — originally a title for goddesses, later applied to the institution that educated you.