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Verb: crack  krak
  1. Become fractured; break or crack on the surface only
    "The glass cracked when it was heated";
    - check, break
  2. Make a very sharp explosive sound
    "His gun cracked"
  3. Make a sharp sound
    "his fingers cracked";
    - snap
  4. Hit forcefully; deal a hard blow, making a cracking noise
    "The teacher cracked him across the face with a ruler"
  5. Pass through (a barrier)
    "Registrations cracked through the 30,000 mark in the county";
    - break through
  6. Break partially but keep its integrity
    "The glass cracked"
  7. Break suddenly and abruptly, as under tension
    "The pipe cracked";
    - snap
  8. Gain unauthorized access to computers with malicious intentions
    "she cracked my password"; "crack a safe"
  9. Suffer a nervous breakdown
    - crack up, crock up, break up, collapse
  10. Tell spontaneously
    "crack a joke"
  11. Cause to become cracked
    "heat and light cracked the back of the leather chair"
  12. (chemistry) reduce (petroleum) to a simpler compound by cracking
  13. (chemistry) break into simpler molecules by means of heat
    "The petroleum cracked"
  14. (of a voice) change in pitch, esp. as a result of emotional strain
  15. Yield information under interrogation or torture
    "They managed to crack him on the third day";
    - break
  16. Successfully decipher a code
    - break
Noun: crack  krak
  1. A narrow planar hole in a rock or material, usually with a flattish sides
    - cleft, crevice, fissure, scissure
  2. A narrow space between things; a narrow opening
    "he opened the window a crack";
    - gap
  3. A long narrow depression in a surface
    - crevice, cranny, fissure, chap
  4. A sudden sharp noise
    "the crack of a whip";
    - cracking, snap
  5. A chance to do something
    "he wanted a crack at the champion";
    - shot
  6. Witty remark
    - wisecrack, sally, quip
  7. A blemish resulting from a break without complete separation of the parts
    "there was a crack in the mirror"
  8. A purified and potent form of cocaine that is smoked rather than snorted; highly addictive
    - crack cocaine, tornado
  9. A usually brief attempt
    "he took a crack at it";
    - fling, go, pass, whirl, offer
  10. The act of cracking something
    - fracture, cracking
  11. [Ireland] A highly pleasurable or exciting experience
    "we had a crack at the party";
    - good time, blast, craic [Ireland]
  12. (computing) a program, fake licence or procedure to circumvent software usage restrictions
Adjective: crack  krak
  1. Of the highest quality
    "a crack shot";
    - ace, A-one, first-rate, super, tiptop, topnotch, top-notch, tops

Derived forms: cracking, cracked, cracks

See also: superior

Type of: alter, attempt, blemish, break, break down, break in, break up, breakage, breaking, chance, change, cocain, cocaine, come apart, comment, decompose, defect, depression, effort, endeavor [US], endeavour [Brit, Cdn], experience, fall apart, gap, get, go, go across, go through, have, hit, impression, imprint, input, mar, modify, narrate, noise, opening, opportunity, pass, recite, recount, remark, retail[2], separate, sound, split up, suffer, sustain, tell, try

Encyclopedia: Crack