(n.) Loud or immoderate laughter; -- often a symptom of hysterical or maniacal affections.

Homeric laughter babble babblement bark bavardage bawl be in stitches belch bellow belly laugh bibble-babble blab blabber blah-blah blare blat blather blether blethers blubber boff boffola boom bray break up breathe burr burst into laughter burst of laughter burst out burst out laughing burst with laughter bust a gut buzz cachinnate cachinnation call caquet caqueterie carol caw chant chat chatter cheep chirk chirp chirr chirrup chitter chitter-chatter chortle chuck chuckle clack clang clangor clank clash clatter cluck cock-a-doodle-doo convulsion coo craunch croak cronk crow crump crunch cuckoo drawl drum exclaim fit of laughter flute gab gabble gaggle gales of laughter gas gasp gibber gibble-gabble giggle go into convulsions gobble gossip grind groan growl grumble grunt guff guffaw guggle ha-ha hearty laugh hee-haw hee-hee hilarity hiss ho-ho honk hoo hoot horselaugh hot air idle talk jabber jangle jar keen laugh laugh it up laugh outright laughing laughter lilt mere talk mumble murmur mutter natter nearly die laughing nonsense talk outburst of laughter palaver pant peal of laughter peep pip pipe prate prating prattle prittle-prattle quack rasp risibility roar roar of laughter roar with laughter roll rumble scold scranch scrape scratch scream screech scrunch shake like jelly shake with laughter shout shout of laughter shriek sibilate sigh sing snap snarl snicker snore snort sob split split with laughter squall squawk squeal talkee-talkee tee-hee thunder titter tittle-tattle trill trumpet twaddle twang twattle tweet twit twitter wail warble whine whisper whistle yak yakkety-yak yap yawp yell yelp yuck yuk-yuk