Definitions

1. noun

A person who attends the same class as someone else, especially at school.

“My classmate is very smart and always gets good grades.”

2. noun

A person who is in the same group or category as someone else.

“He’s a classmate of mine from our college’s business program.”

3. verb

To attend the same class as someone else.

“We classmate at the same university, but never met until now.”