laugh

(noun) the sound of laughing. Synonyms: laughter.

(noun) a facial expression characteristic of a person laughing. Examples: "His face wrinkled in a silent laugh of derision."

(noun) a humorous anecdote or remark intended to provoke laughter. Synonyms: joke, gag, jest, jape. Examples: "He told a very funny joke." "He knows a million gags." "Thanks for the laugh." "He laughed unpleasantly at his own jest." "Even a schoolboy's jape is supposed to have some ascertainable point."

(verb) produce laughter. Synonyms: express joy, express mirth.