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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(31) Their relationship began to crack after their child died.
(32) The child peeped through a crack in the door.
(33) The rigidity of the metal caused it to crack.
(34) I'd like a crack at climbing that mountain.
(35) His political enemies have never managed to crack him.
(36) I didn't like his crack about her being overweight.
(37) The plate had a crack in it.
(38) Concrete is liable to crack in very cold weather.
(39) Let's crack open a bottle of champagne to celebrate.
(40) He heard the sharp crack of a twig.
(41) He made a very unfair crack about her looks.
(42) The branch broke with a sharp crack.
(43) There's a crack on the underneath of the bowl.
(44) Crack two eggs into the mixture.
(45) He avoided stepping on the crack in the sidewalk.
(46) She looked through a crack in the curtains.
(47) "Crack!" — The first shot rang out, hitting Paolo.
(48) Dust blew through every crack in the room.
(49) Let's crack open a bottle of bubbly to celebrate.
(50) We peered through the crack in the floorboards.
(51) Stress and overwork are causing teachers to crack .
(52) This cup has a crack in it.
(53) The chandelier hit the floor with a crack.
(54) Have another crack at solving this puzzle.
(55) Several kilos of crack were found in her luggage.
(56) Pressure of life caused him to crack up.
(57) Crack is the most addictive drug on the market.
(58) She peeped through the crack in the curtains.
(59) Water seeped from a crack in the pipe.
(60) We were up at the crack of dawn.