crack (n.)

  1. a long narrow opening

    [ Syn: cleft , crevice , fissure , scissure ]

  2. the act of cracking something

    [ Syn: fracture , cracking ]

  3. a narrow opening; he opened the window a crack

    [ Syn: gap ]

  4. a long narrow depression in a surface

    [ Syn: crevice , cranny , fissure , chap ]

  5. a sudden sharp noise; the crack of a whip; he heard the cracking of the ice; he can hear the snap of a twig

    [ Syn: cracking , snap ]

  6. a chance to do something; he wanted a shot at the champion

    [ Syn: shot ]

  7. witty remark

    [ Syn: wisecrack , sally , quip ]

  8. a blemish resulting from a break without complete separation of the parts; there was a crack in the mirror'

  9. a purified and potent form of cocaine that is smoked rather than snorted; highly addictive

    [ Syn: crack cocaine , tornado ]

  10. a usually brief attempt; he took a crack at it; I gave it a whirl

    [ Syn: fling , go , pass , whirl , offer ]

    crack (adj.)

  1. of the highest quality; an ace reporter; a crack shot; a first-rate golfer; a super party; played top-notch tennis; an athlete in tiptop condition; she is absolutely tops

    [ Syn: ace , a-one , first-rate , super , tiptop , topnotch , top-notch , tops ]

    crack (v.)

  1. become fractured; break or crack on the surface only; The glass cracked when it was heated

    [ Syn: check , break ]

  2. tell spontaneously; crack a joke'

  3. cause to become cracked; heat and light cracked the back of the leather chair'

  4. reduce (petroleum) to a simpler compound by cracking

  5. break into simpler molecules by means of heat; The petroleum cracked'

  6. make a very sharp explosive sound; His gun cracked'

  7. make a sharp sound; his fingers snapped

    [ Syn: snap ]

  8. hit forcefully; deal a hard blow, making a cracking noise; The teacher cracked him across the face with a ruler'

  9. pass through (a barrier); Registrations cracked through the 30, 000 mark in the county

    [ Syn: break through ]

  10. break partially but keep its integrity; The glass cracked'

  11. break suddenly and abruptly, as under tension; The pipe snapped

    [ Syn: snap ]

  12. gain unauthorized access computers with malicious intentions; she cracked my password; crack a safe'

  13. suffer a nervous breakdown

    [ Syn: crack up , crock up , break up , collapse ]

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.