classes

noun
UK /ˈklɑːsɪz/
US /ˈklæsɪz/

Groups of students who learn together.

The two classes played a game together at recess.


OTHER MEANINGS

2. Periods of time when a subject is taught.

I have three classes before lunch.

3. Groups of things that are alike in some way.

Scientists put animals into different classes.

4. Levels of quality or rank in a society.

People sometimes talk about upper and lower classes.