Other ways of saying laugh
to laugh in a nervous or excited way, especially at something silly: Andy and Sarah were giggling helplessly at the back of the class.
to laugh quietly, especially in a private or secret way: 'Now that was a sight to see!' chuckled Anne as she looked at the photos.
to laugh in a loud unpleasant way, especially when you are taking pleasure in someone else's bad luck: The old man was cackling horribly and rubbing his hands.
to laugh secretly and quietly, especially in an unkind way or at something that is rude: The children started sniggering at Judy's dancing.
to laugh quietly and unkindly when something embarrassing happens: The audience tittered as Brock fell through the door.
get the giggles
to start giggling and be unable to stop: We got the giggles in the middle of the ceremony and Sarah was furious.
be in hysterics
to laugh in an excited and uncontrolled way: You should have seen his face – we were in absolute hysterics!
crack up (informal)
to suddenly start laughing at something, often in a situation when you are not supposed to: When he told us to leave the room, we just cracked up, I'm afraid.