giggle

Universal Words verb, noun verb ~ (at / about sb/sth) to laugh in a silly way because you are amused, embarrassed or nervous: [V] The girls giggled at the joke. * They giggled nervously as they waited for their turn. * She giggled with delight. [also Vspeech] noun 1 [C] a slight silly repeated laugh: She gave a nervous giggle. * Matt collapsed into giggles and hung up the phone. 2 [sing.] (BrE, informal) a thing that you think is amusing: We only did it for a giggle. 3 (the giggles) [pl.] (informal) continuous giggling that you cannot control or stop: I get the giggles when I'm nervous. * She had a fit of the giggles and had to leave the room. * It's just something about the way he said it that gave me the giggles.