laugh·ter 
/ˈlæftɚ, Brit ˈlɑ:ftɚ/ noun
/ˈlæftɚ, Brit ˈlɑ:ftɚ/ noun [noncount] : the action or sound of laughing
▪ Laughter filled the air. ▪ peals/gales/shrieks of laughter ▪ The audience roared/shrieked/howled with laughter. ▪ The audience erupted in laughter. = The audience burst into laughter. [=the audience suddenly began laughing]
▪ Laughter filled the air. ▪ peals/gales/shrieks of laughter ▪ The audience roared/shrieked/howled with laughter. ▪ The audience erupted in laughter. = The audience burst into laughter. [=the audience suddenly began laughing]
