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We found 25 dictionaries with English definitions that include the word undefined:
Click on the first link on a line below to go directly to a page where "undefined" is defined.

General dictionaries General (21 matching dictionaries)
  1. undefined: Oxford Dictionaries [home, info]
  2. undefined: Collins English Dictionary [home, info]
  3. undefined: Vocabulary.com [home, info]
  4. undefined: Macmillan Dictionary [home, info]
  5. undefined: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
  6. Undefined, undefined: Wordnik [home, info]
  7. Undefined: Wiktionary [home, info]
  8. undefined: Infoplease Dictionary [home, info]
  9. undefined: Dictionary.com [home, info]
  10. undefined: Online Etymology Dictionary [home, info]
  11. undefined: UltraLingua English Dictionary [home, info]
  12. Undefined: Wikipedia, the Free Encyclopedia [home, info]
  13. undefined: Rhymezone [home, info]
  14. undefined: Webster's 1828 Dictionary [home, info]
  15. undefined: Free Dictionary [home, info]
  16. undefined: Mnemonic Dictionary [home, info]
  17. undefined: WordNet 1.7 Vocabulary Helper [home, info]
  18. undefined: LookWAYup Translating Dictionary/Thesaurus [home, info]
  19. undefined: Dictionary/thesaurus [home, info]

Business dictionaries Business (1 matching dictionary)
  1. undefined: Legal dictionary [home, info]

Science dictionaries Science (2 matching dictionaries)
  1. Undefined: Eric Weisstein's World of Mathematics [home, info]
  2. undefined: MATH SPOKEN HERE! [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. undefined: Urban Dictionary [home, info]

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (undefined)

adjective:  not precisely limited, determined, or distinguished ("An undefined term")

Word origin

Phrases that include undefined:   undefined behaviour, undefined reference to sbrk, undefined terms

Words similar to undefined:   vague, more...

Search for undefined on Google or Wikipedia

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