1. To make a cracking sound (said of tightly stretched ropes or fingers); SYN. crack.
2. To break suddenly and abruptly; as of something under tension; SYN. crack.
3. To cause to make a snapping sound; of fingers; SYN. click, flick.
4. To move or strike with a click; SYN. click.
5. To move with a snapping sound
6. To put in play with a snap, of a football.
7. To snap close with a sound
8. To utter in an angry, sharp, or abrupt tone; SYN. snarl.