Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun laughter

2 senses of laughter

Sense 1
laugh, laughter -- (the sound of laughing)
       => utterance, vocalization -- (the use of uttered sounds for auditory communication)

Sense 2
laughter -- (the activity of laughing; the manifestation of joy or mirth or scorn; "he enjoyed the laughter of the crowd")
       => activity -- (any specific behavior; "they avoided all recreational activity")