1 a sudden loud sound, especially made by something breaking or closing :
He shut the book with a snap.
sound
[singular]
He shut the book with a snap.2 a photograph taken quickly and often not very skilfully [= snapshot]:
holiday snaps
photograph
[countable] informal especially British EnglishTCP
holiday snaps4 a small metal fastener on clothes that works when you press its two parts together :
baby clothing with snaps
clothing
[countable] American EnglishDCC
baby clothing with snaps5
a sudden sound made by quickly moving one of your fingers against your thumb :
At a snap of his owner's fingers, the dog came running.

a snap of somebody's fingers
At a snap of his owner's fingers, the dog came running.6 a card game in which players put down one card after another and try to be the first to shout 'snap' when there are two cards that are the same
