#1
laugh v. [
express joy, express mirth] produce laughter
. wn #2
laugh n. [
laughter] the sound of laughing
. wn #3
laugh n. a facial expression characteristic of a person laughing; "his face wrinkled in a silent laugh of derision"
. wn #4
laugh n. [
joke, gag, jest, jape] a humorous anecdote or remark intended to provoke laughter; "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"
. wn