snigger

an explosive sound that is a sign of amusement a love scene that unintentionally drew sniggers from the audience Synonyms belly laugh, boff (or boffo), boffola, cachinnation, cackle, chortle, chuckle, giggle, guffaw, hee-haw, horselaugh, laughter, snicker, laugh, titter, twitterRelated Words crow, whoop; grin, simper, smile, smirkNear Antonyms cry, groan, moan, sob, wail; face, frown, grimace, lower (also lour), mouth, pout, scowl

to express scornful amusement by means of facial contortions we sniggered as the actor kept forgetting his lines Synonyms laugh, smile, snicker, sneerRelated Words sniff, snort; catcall, deride, gibe (or jibe), hoot, insult, jeer, mock, ridicule; decry, despise, disdain; scoff (at), scorn; bad-mouth, belittle, disparage, pooh-pooh (also pooh), put down; heckle, jive, razz, rib, ride, taunt, tease, torment