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crack noun [ krak ]

• a line on the surface of something along which it has split without breaking apart.
• "a hairline crack down the middle of the glass"
Similar: split, fissure, crevice, break, fracture, rupture, breach, rift, cleft, slit, chink, gap, cranny, interstice, crazing,
• a sudden sharp or explosive noise.
• "a loud crack of thunder"
Similar: bang, report, explosion, detonation, clap, pop, snap, crackle, knock, tap, clash, crash, smash, smack, wham, whump,
• a joke, typically a critical or unkind one.
• "he knew about the gossip and would make the odd crack"
Similar: joke, witticism, funny remark, witty remark, jest, quip, pun, sally, pleasantry, epigram, aphorism, repartee, banter, bon mot, jibe, barb, jeer, sneer, taunt, insult, cutting remark, slight, affront, slur, insinuation, one-liner, gag, wisecrack, funny, dig,
• enjoyable social activity; a good time.
• "he loved the crack, the laughing"
• an attempt to achieve something.
• "I fancy having a crack at winning a fourth title"
Similar: attempt, try, effort, endeavour, venture, go, shot, stab, whack, whirl, essay, assay,
• a potent hard crystalline form of cocaine broken into small pieces and inhaled or smoked.
• "he uses crack and cocaine"

crack verb

• break or cause to break without a complete separation of the parts.
• "the ice all over the bog had cracked"
Similar: split, fracture, fissure, rupture, break, snap, cleave, craze,
• make or cause to make a sudden sharp or explosive sound.
• "a shot cracked across the ridge"
Similar: go bang, bang, pop, snap, crackle, crash, thud, thump, boom, ring out, clap, explode, detonate,
• find a solution to; decipher or interpret.
• "the code will help you crack the messages"
Similar: solve, find an/the answer to, find a/the solution to, resolve, work out, puzzle out, fathom, find the key to, decipher, decode, break, clear up, interpret, translate, straighten out, get to the bottom of, make head or tail of, unravel, disentangle, untangle, unfold, piece together, elucidate, figure out, suss out,
• tell (a joke).
• "he cracked jokes which she didn't find very funny"
• decompose (hydrocarbons) by heat and pressure with or without a catalyst to produce lighter hydrocarbons, especially in oil refining.
• "catalytic cracking increases gasoline yields"

crack adjective

• very good or skilful.
• "he is a crack shot"
Similar: expert, skilled, skilful, masterly, virtuoso, master, consummate, proficient, accomplished, talented, gifted, adept, adroit, deft, dexterous, able, good, competent, capable, efficient, experienced, seasoned, trained, practised, professional, polished, well versed, versed, magnificent, brilliant, splendid, marvellous, impressive, excellent, formidable, outstanding, first-class, first-rate, fine, deadly, great, mean, wicked, stellar, nifty, ace, wizard, a dab hand at, crackerjack, compleat, habile, shit-hot,
Opposite: incompetent,
Origin: Old English cracian ‘make an explosive noise’; of Germanic origin; related to Dutch kraken and German krachen . crack (sense 4 of the noun) is from Irish craic ‘entertaining conversation’.

crack a book

• open a book and read it; study.
"they can run with a football or dunk a basketball with little concern whether they ever crack a book"

crack a crib

• break into a house.

crack hardy

• assume a brave or tough front in the face of a difficult or unpleasant situation.
"we cracked hardy but we were in shock"

crack of dawn

• a time very early in the morning; daybreak.
"I've been up since the crack of dawn"

crack of doom

• a peal of thunder announcing the Day of Judgement.
"I fell off the ladder, making a noise like the crack of doom"

crack open a bottle

• open a bottle, especially of wine, and drink from it.
"he likes to crack open a bottle of wine with his friends"

be cracked up to be

• be asserted to be (used to indicate that someone or something has been described too favourably).
"life on tour is not as glamorous as it's cracked up to be"

crack wise

• make jokes.
"this struck them as funny, although nobody used it as a moment to crack wise at my expense"

fall through the cracks

• be overlooked.
"fatherless kids were not allowed to fall through the cracks"

get cracking

• act quickly and decisively.
"most tickets have been snapped up, so get cracking if you want one"

crack down on

• take severe measures against someone or something.
"the police will crack down on criminals"

crack on

• proceed or progress quickly.
"we'll crack on with the rest of the job this month"

crack on to

• seek to form a sexual relationship with someone.

crack up

• suffer an emotional breakdown under pressure.
"I feel I'm cracking up, always on the verge of tears"



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