- laugh, laughter - the sound of laughing
--1 is a kind of utterance, vocalization
--1 has particulars:cachinnation; cackle; chortle, chuckle; giggle; guffaw, belly laugh; hee-haw, horselaugh, ha-ha, haw-haw; snicker, snort, snigger; titter - laughter - the activity of laughing; the manifestation of joy or mirth of scorn; "he enjoyed the laughter of the crowd"
--2 is a kind of activity; expression, manifestation, reflection, reflexion