Definition of laughter noun from the Oxford Advanced American Dictionary

 

laughter

 noun
noun
NAmE//ˈlæftər//
 
[uncountable]
 
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the act or sound of laughing to roar with laughter tears/gales/howls/shrieks of laughter to burst/dissolve into laughter a house full of laughter (= with a happy atmosphere) He gave a snort of derisive laughter.
See the Oxford Advanced Learner's Dictionary entry: laughter