v. 1 titter, snicker, snigger, chuckle, laugh, chortle, cackle, twitter Stop that giggling at the rear of the classroom!
n. 2 titter, snicker, snigger, chuckle, laugh, chortle, cackle, twitter Did I hear a giggle? 3 joke, prank, laugh: Just for a giggle, we tied his shoelaces together