Synonym: bang, blow, break, noise, open, shot, slit, split. Similar words: rack, meritocracy, track, track down, craft, crawl, crash, scratch. Meaning: [kræk] 
n. 1. a long narrow opening 2. a narrow opening 3. a long narrow depression in a surface 4. a sudden sharp noise 5. a chance to do something 6. witty remark 7. a blemish resulting from a break without complete separation of the parts 8. a purified and potent form of cocaine that is smoked rather than snorted 9. a usually brief attempt 10. the act of cracking something. v. 1. become fractured; break or crack on the surface only 2. make a very sharp explosive sound 3. make a sharp sound 4. hit forcefully; deal a hard blow, making a cracking noise 5. pass through (a barrier) 6. break partially but keep its integrity 7. break suddenly and abruptly, as under tension 8. suffer a nervous breakdown 9. tell spontaneously 10. cause to become cracked 11. reduce (petroleum) to a simpler compound by cracking 12. break into simpler molecules by means of heat. adj. of the highest quality.
n. 1. a long narrow opening 2. a narrow opening 3. a long narrow depression in a surface 4. a sudden sharp noise 5. a chance to do something 6. witty remark 7. a blemish resulting from a break without complete separation of the parts 8. a purified and potent form of cocaine that is smoked rather than snorted 9. a usually brief attempt 10. the act of cracking something. v. 1. become fractured; break or crack on the surface only 2. make a very sharp explosive sound 3. make a sharp sound 4. hit forcefully; deal a hard blow, making a cracking noise 5. pass through (a barrier) 6. break partially but keep its integrity 7. break suddenly and abruptly, as under tension 8. suffer a nervous breakdown 9. tell spontaneously 10. cause to become cracked 11. reduce (petroleum) to a simpler compound by cracking 12. break into simpler molecules by means of heat. adj. of the highest quality. 
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(151) We'd better crack on with the painting before it gets dark.
(152) Printing visiting cards on a thirty - inch press is using a sledgehammer to crack a nut.
(153) I have to get up at the crack of dawn.
(154) It was a small and peaceful demonstration so I don't know why there was such a big police presence. It was like using a sledgehammer to crack a nut.
(155) Police have launched a campaign to crack down on drug dealers.
(156) Drug experts say it could spell the end of the crack epidemic.
(157) You'll crack up if you go on working so hard.
(158) She's a tough nut to crack ; I don't think she'll give us permission.
(159) You'll crack up if you carry on working like this.
(160) He was struck with a smart crack on the head.
(161) It used to crack me up.
(162) That is the population of crack cocaine users.
(163) They crack jokes, laughing and shouting.
(164) The international banking system began to crack.
(165) All those crack shits shooting up the streets?
(166) Crack is a potent, highly addictive form of cocaine.
(167) He was on crack cocaine at the time.
(168) Hereford usually crack or collapse in the dying minutes.
(169) Crack is a highly addictive form of cocaine.
(170) Dirk , nearly sixteen, is a crack shot.
(171) Surviving in this goldfish bowl of publicity would crack the strongest union.
(171) Wish you can benefit from our online sentence dictionary and make progress every day!
(172) Arrests for sale or possession of crack cocaine jumped from 41 in 1991 to 119 last year.
(173) In recent weeks, drugs squad officers have seized quantities of crack cocaine in Gloucester and Stroud.
(174) All parents damage their children. It cannot be helped. Youth, like pristine glass, absorbs the prints of its handlers. Some parents smudge, others crack, a few shatter childhoods completely into jagged little pieces, beyond repair. Mitch Albom 
(175) Crack is a cheaper, smokable form which is powerfully addictive.
(176) A triangle was chipped from one of its corners and a crack extended diagonally across its surface.
(177) And perhaps their finest stroke was the casting of rapper Ice-T as a heroic, charismatic crack baron.
(178) One crack or tear in them, and they would sag like an old bag of sand.
(179) It's a tough case but I'm determined to crack it.
(180) Information gathered by the national criminal intelligence service reveals a growing use of crack cocaine in the Shire counties.