joke

Something, such as a funny story or trick, that is said or done in order to make people laugh.

He tried to cheer everyone up by telling a joke.
That's an old joke - I've heard it about a thousand times.
Why does no one ever laugh at my jokes?
Do you know any funny jokes?

comedy

A word that's meant to describe media that is intended to make you laugh.

Person A: Oh wow, this movie had way more comedy than I expected!
Person B: Yea dude, it made me laugh so much!