Synonyms for Snap:

adj.

fast (adjective)
like mad.

adv

quickly (adverb)
like mad, hasty, like a shot, fast, quickly, rapid, urgent, in a flash/like a flash/quick as a flash, frenetic, hurried.

n.

clamour, clamor, cacophony, blare, beep. pop, smash, shatter, splinter, bark, disintegrate, fragment. rage, abuse, tear into, scold, lash out, raise your voice, explosion, bite someone's head off, jump down someone's throat, let fly, tell off, fold. nip, faithful, strike, bay, reach, retrieve, slaver, wag, beg, howl. gin rummy, canasta, patience, pontoon, contract bridge, words, beggar-thy-neighbor, cribbage, bridge, blackjack, poker. braces, eyelet, cufflink, eye, cummerbund, drawstring. shove, zap, skim, whisk, slide, whip. act (noun)
grab, catch.
cinch (noun)
ease.
easy thing to accomplish (noun)
duck soup, picnic, ease, walkover, breeze, child's play, cinch.
energy (noun)
puissance, effervescence, might, stamina, vivacity, drive, spark, vim, strength, potency, verve, fire, spirit, fervor, spunk, energy, zeal, force, activity, zing, power, zip, vigor, pep.
fastener (noun)
belt, lace, braid, string, hawser, lock, rabbet, hasp, clasp, coupling, fuse, rivet, clamp, cinch, hitch, clip, nail, closure, chain, hook, fastener, brace, binding, zipper, spike, buckle, Vinculum, strap, paste, ligament, guy, cement, thread, band, anchor, cincture, pin, mediator, stay, fastening, bonding, knot, clinch, middleman, suture, button, vise, tack, cleat, catch, connector, mucilage, go-between, tie, seal, knitting, brad, glue, staple, stitch, cotter, skewer, binder, hinge, medium, bond, link, splice, weld, latch, bolt, bracket, twine, grapnel, agent.
piece of cake (noun)
piece of cake.
pushover (noun)
pushover.
snap (noun)
grab, thwack, shoot, crepitation, thump, flick, rap, flap, photograph, click, centering, bump, child's play, slam, report, snatch up, walkover, bust, picnic, smack, bang, catch, slap, duck soup, tap, crash, snarl, pushover, clack, boom, piece of cake, clap, knock, tear, rupture, burst, whack, cinch, breeze.

v.

bite, seize (verb)
catch, yank, grab, twitch, lurch, nip.
communication (verb)
snarl.
separate, break (verb)
pop, click.
snap (verb)
flap, clap, slap, clack, click, rap, thwack, thump, bump, whack, bang, tap, knock, burst, smack, slam, crash.
speak sharply (verb)
lash out, snarl, bark.

Other synonyms:

hold against. ease, rise to, nip, wrench, pop, wag. yank, twitch, slaver, retrieve, beg. howl, bark. faithful, lurch, explosion. mind, fold. strike. light touch
flick.
shatter
shatter.
Other relevant words:
pushover, snarl, pop, duck soup, bark, picnic, flick, grab, piece of cake, shoot, bang, breeze, photograph, rupture.

Usage examples for snap

  1. Why, if the President had his way, he'd lock up every man that had enough sense and snap in him to do things, and he'd make this country like a Methodist camp meeting after the shouting is over! – Together by Robert Herrick (1868-1938)
  2. They had scarcely left the porch before the hounds bounded up the steps and a pair of gleaming jaws came together with a snap close to Lester's foot, which he drew out of the way just in time to escape being caught. – The Boy Trapper by Harry Castlemon
  3. One could not tell how long the cold- snap would last, but it had already embarrassed him. – The Girl From Keller's Sadie's Conquest by Harold Bindloss