1 break (off), separate, crack; cleave, split, fracture, give way, part:
The wind snapped off tree branches like matchsticks. The back legs of the chair snapped in two as she sat on it
2 click; pop; crack:
3 Often, snap at.
(a) bite (at), nip, gnash or snatch at:
The postman ran down the street, the dog snapping at his heels.
(b) attack, lunge at, lash out (at), snarl at, growl (at), bark (at), be brusque or short or curt (with), Colloq jump down (someone's) throat, fly off the handle (at):
Robin is in a bad mood today, snapping at everyone.
4 Usually, snap up or US also off. grab (up), snatch (up), seize, pluck, pounce on or upon, make off with, take (away), capture, catch, get, secure:
The people who arrived early at the sale had snapped up all the bargains
5 shoot, snapshot, photograph, click, catch:
He always has his camera with him so that he can snap anything interesting
6 snap one's fingers at. disdain, scorn, flout, dismiss, contemn, disregard, ignore, defy, mock, deride, thumb one's nose at, Brit cock a snook at:
He merely snapped his fingers at the dangers when I mentioned them
7 snap out of it. recover, come round or around, revive, awaken, wake up, perk up, liven up, cheer up; get a grip or (a) hold on or of oneself, pull oneself together, (re)gain control of oneself:
I was feeling very blue yesterday but managed to snap out of it.
8 crack, crackle, pop, click:
The lid shut with a snap.
9 spell, period, interval, wave:
During that cold snap we thought we were in for a terrible winter.
10 catch, spring catch, (snap-)fastener, fastening, clasp:
Do you want snaps or buttons sewn on this shirt?
11 energy, vigour, animation, liveliness, vitality, bounce, alertness, sprightliness, élan, dash, sparkle, verve, Colloq zip, zing, get-up-and-go, pep, pizazz:
Granny certainly has a lot of snap left in her.
12 easy job, Slang picnic, US and Canadian breeze:
There had been no need for her to worry, for the exam turned out to be a snap.
13 abrupt, sudden, precipitate, hurried, hasty, incautious, rash, unpremeditated, unplanned, not well-thought-out, quick, instantaneous, instant:
This is too important a matter for a snap decision.