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We found 43 dictionaries with English definitions that include the word invalid:
Click on the first link on a line below to go directly to a page where "invalid" is defined.

General dictionaries General (30 matching dictionaries)
  1. invalid: Merriam-Webster.com [home, info]
  2. invalid, invalid: Oxford Dictionaries [home, info]
  3. invalid, invalid: American Heritage Dictionary of the English Language [home, info]
  4. invalid: Collins English Dictionary [home, info]
  5. invalid: Vocabulary.com [home, info]
  6. invalid, invalid, invalid: Macmillan Dictionary [home, info]
  7. Invalid, invalid: Wordnik [home, info]
  8. invalid: Cambridge Advanced Learner's Dictionary [home, info]
  9. Invalid: Wiktionary [home, info]
  10. invalid: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. invalid: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. invalid: Infoplease Dictionary [home, info]
  13. invalid: Dictionary.com [home, info]
  14. invalid (adj.): Online Etymology Dictionary [home, info]
  15. invalid: UltraLingua English Dictionary [home, info]
  16. invalid: Cambridge Dictionary of American English [home, info]
  17. Invalid, .invalid: Wikipedia, the Free Encyclopedia [home, info]
  18. invalid: Cambridge International Dictionary of Phrasal Verbs [home, info]
  19. Invalid: Online Plain Text English Dictionary [home, info]
  20. invalid: Webster's Revised Unabridged, 1913 Edition [home, info]
  21. invalid: Rhymezone [home, info]
  22. Invalid: AllWords.com Multi-Lingual Dictionary [home, info]
  23. invalid: Webster's 1828 Dictionary [home, info]
  24. invalid: Free Dictionary [home, info]
  25. invalid: Mnemonic Dictionary [home, info]
  26. invalid: WordNet 1.7 Vocabulary Helper [home, info]
  27. invalid: LookWAYup Translating Dictionary/Thesaurus [home, info]
  28. invalid: Dictionary/thesaurus [home, info]

Art dictionaries Art (1 matching dictionary)
  1. invalid: Dictionary of Philosophical Terms and Names [home, info]

Business dictionaries Business (5 matching dictionaries)
  1. invalid: Webster's New World Law Dictionary [home, info]
  2. invalid: Glossary of Legal Terms [home, info]
  3. INVALID: Bouvier's Law Dictionary 1856 Edition [home, info]
  4. invalid: Legal dictionary [home, info]
  5. invalid: BusinessDictionary.com [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. invalid: Encyclopedia [home, info]

Medicine dictionaries Medicine (2 matching dictionaries)
  1. invalid: online medical dictionary [home, info]
  2. invalid: Medical dictionary [home, info]

Science dictionaries Science (2 matching dictionaries)
  1. invalid: Botanical Terms [home, info]
  2. invalid: PlanetMath Encyclopedia [home, info]

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

Tech dictionaries Tech (1 matching dictionary)
  1. Invalid: Dictionary for Avionics [home, info]

Quick definitions from Macmillan (
)
American English Definition British English Definition

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Quick definitions from WordNet (invalid)

noun:  someone who is incapacitated by a chronic illness or injury
verb:  force to retire, remove from active duty, as of firemen
verb:  injure permanently
adjective:  having no cogency or legal force ("Invalid reasoning")
adjective:  no longer valid ("The license is invalid")

Word origin

Words similar to invalid

Usage examples for invalid

Popular adjectives describing invalid

Popular nouns described by invalid

Words that often appear near invalid

Rhymes of invalid

Invented words related to invalid

Phrases that include invalid:   invalid page fault, imaginary invalid, invalid 1, invalid 2, invalid click, more...

Words similar to invalid:   disable, handicap, incapacitate, invalided, invaliding, invalidly, shut-in, null, more...


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