Schoolmate (noun)

A person who attends the same school as another person.

Origin:

The word schoolmate is a compound word made up of the words "school" and "mate".

Examples:

1. She was my schoolmate in high school.
2. He still keeps in touch with some of his schoolmates from primary school.
3. I haven't seen my schoolmate since graduation day.
4. I used to be best friends with my schoolmate in middle school.
5. He always had a crush on one of his schoolmates but never told her.