Usually means: Fracture or split in material.
Definitions Related words Phrases (New!) Mentions Lyrics History Colors (New!)
We found 62 dictionaries that define the word crack:

General (26 matching dictionaries)
  1. crack: Merriam-Webster.com
  2. crack: Oxford Learner's Dictionaries
  3. crack: American Heritage Dictionary of the English Language
  4. crack: Collins English Dictionary
  5. crack: Vocabulary.com
  6. Crack, crack: Wordnik
  7. crack: Cambridge Advanced Learner's Dictionary
  8. crack: Wiktionary
  9. crack: Webster's New World College Dictionary, 4th Ed.
  10. crack: The Wordsmyth English Dictionary-Thesaurus
  11. crack: Infoplease Dictionary
  12. crack: Dictionary.com
  13. crack: Online Etymology Dictionary
  14. crack: Cambridge Essential American English Dictionary
  15. C.R.A.C.K, Crack (album), Crack (disambiguation), Crack (password software), Crack, The Crack (album), The Crack (magazine), The Crack: Wikipedia, the Free Encyclopedia
  16. Crack: Online Plain Text English Dictionary
  17. crack: Webster's Revised Unabridged, 1913 Edition
  18. crack: Rhymezone
  19. crack: AllWords.com Multi-Lingual Dictionary
  20. crack: Webster's 1828 Dictionary
  21. CRACK: Dictionary of Americanisms (1848)
  22. crack: Free Dictionary
  23. crack: Mnemonic Dictionary
  24. crack: Dictionary/thesaurus

Art (1 matching dictionary)
  1. Shakespeare Glossary (No longer online)

Business (5 matching dictionaries)
  1. Crack: bizterms.net
  2. Construction Term Glossary (No longer online)
  3. Crack: Investopedia
  4. Crack (disambiguation), Crack (slang), crack: Legal dictionary
  5. Crack (disambiguation), Crack (economics), Crack (slang), Crack: Financial dictionary

Computing (5 matching dictionaries)
  1. crack: Netlingo
  2. Webopedia (No longer online)
  3. crack: Hacking Lexicon
  4. Technopedia (No longer online)
  5. Crack (disambiguation), Crack (slang), crack: Encyclopedia

Medicine (4 matching dictionaries)
  1. Crack (drug): MedTerms.com Medical Dictionary
  2. online medical dictionary (No longer online)
  3. Crack (disambiguation), Crack (slang), crack: Medical dictionary
  4. Crack (drug): Drug Medical Dictionary

Miscellaneous (4 matching dictionaries)
  1. Ka-BOOM! Comicbook Words on Historical Principles (No longer online)
  2. CRACK: Acronym Finder
  3. AbbreviationZ (No longer online)
  4. crack: Idioms

Slang (6 matching dictionaries)
  1. crack, crack, crack, crack, crack, crack, crack, crack, crack, crack, crack, crack, crack: Green’s Dictionary of Slang
  2. crack: English slang and colloquialisms used in the United Kingdom
  3. Totally Unofficial Rap (No longer online)
  4. Crack: Street Terms: Drugs and the Drug Trade
  5. The Crack: Urban Dictionary
  6. Crack: Dublin Slang and Phrasebook

Sports (6 matching dictionaries)
  1. Crack: Dan's Poker
  2. Crack: Poker Terms
  3. crack: Golfer's Dictionary
  4. Crack: Sports Definitions
  5. Hickok Sports Glossaries (No longer online)
  6. Texas Hold'em Dictionary (No longer online)

Tech (5 matching dictionaries)
  1. AUTOMOTIVE TERMS (No longer online)
  2. Crack: Building pathology glossary
  3. crack: Construction deterioration & building durability glossary
  4. Glossary of Meteorology (No longer online)
  5. National Glass Association Glossary (No longer online)

(Note: See cracked as well.)

Definitions from Wiktionary (
)
American English Definition British English Definition
verb:  (intransitive) To form cracks.
verb:  (intransitive) To break apart under force, stress, or pressure.
verb:  (intransitive) To become debilitated by psychological pressure.
verb:  (intransitive) To break down or yield, especially under interrogation or torture.
verb:  (intransitive) To make a cracking sound.
verb:  (intransitive, of a voice) To change rapidly in register.
verb:  (intransitive, of a pubescent boy's voice) To alternate between high and low register in the process of eventually lowering.
verb:  (intransitive) To make a sharply humorous comment.
verb:  (intransitive, LGBTQ, slang) To realize that one is transgender.
verb:  (transitive) To make a crack or cracks in.
verb:  (transitive) To break open or crush to small pieces by impact or stress.
verb:  (transitive) To strike forcefully.
verb:  (transitive) To open slightly.
verb:  (transitive, figurative) To cause to yield under interrogation or other pressure.
verb:  (transitive, figurative) To solve a difficult problem.
verb:  (transitive) To overcome a security system or component.
verb:  (transitive) To cause to make a sharp sound.
verb:  (transitive) To tell (a joke).
verb:  (transitive, chemistry) To break down (a complex molecule), especially with the application of heat: to pyrolyse.
verb:  (transitive, computing) To circumvent software restrictions such as regional coding or time limits.
verb:  (transitive, informal) To open a canned beverage, or any packaged drink or food.
verb:  (obsolete) To brag; to boast.
verb:  (archaic, colloquial) To be ruined or impaired; to fail.
verb:  (colloquial) To barely reach or attain (a measurement or extent).
noun:  A thin and usually jagged space opened in a previously solid material.
noun:  A narrow opening.
noun:  A sharply humorous comment; a wisecrack.
noun:  (slang) Crack cocaine, a potent, relatively cheap, addictive variety of cocaine; often a rock, usually smoked through a crack-pipe.
noun:  (figurative, humorous) Something good-tasting or habit-forming.
noun:  (onomatopoeia) The sharp sound made when solid material breaks.
noun:  (onomatopoeia) Any sharp sound.
noun:  A sharp, resounding blow.
noun:  (informal) An attempt at something.
noun:  (vulgar, slang) The vagina.
noun:  (informal) The space between the buttocks.
noun:  (Northern England, Scotland, Ireland) Conviviality; fun; good conversation, chat, gossip, or humorous storytelling; good company.
noun:  (Northern England, Scotland, Ireland) Business; events; news.
noun:  (computing) A program or procedure designed to circumvent restrictions or usage limits on software.
noun:  (hydrodynamics, US, dated) An expanding circle of white water surrounding the site of a large explosion at shallow depth, marking the progress of the shock wave through the air above the water.
noun:  (Cumbria, elsewhere throughout the North of the UK) a meaningful chat.
noun:  (Internet slang) Extremely silly, absurd or off-the-wall ideas or prose.
noun:  The tone of voice when changed at puberty.
noun:  (archaic) A mental flaw; a touch of craziness; partial insanity.
noun:  (archaic) A crazy or crack-brained person.
noun:  (obsolete) A boast; boasting.
noun:  (obsolete) Breach of chastity.
noun:  (obsolete) A boy, generally a pert, lively boy.
noun:  (slang, dated, UK) A brief time; an instant; a jiffy.
noun:  (African-American Vernacular, dated) The act of hitting on someone.
adjective:  Highly trained and competent.
adjective:  Excellent, first-rate, superior, top-notch.
noun:  (obsolete) One who excels; the best.
noun:  A surname

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