- (used as an exclamation or representation of laughter, as in expressing amusement or derision.)
- a representation of the sound of laughter
- an exclamation expressing derision, mockery, surprise, etc
- a wall or other boundary marker that is set in a ditch so as not to interrupt the landscape
also haha, used of laughter since ancient times; cf. Old English ha ha, Greek ha ha, Latin hahae. A different attempt at representation is in py-hy (1580s).