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We found 44 dictionaries with English definitions that include the word necessary:
Click on the first link on a line below to go directly to a page where "necessary" is defined.

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

Business dictionaries Business (3 matching dictionaries)
  1. necessary: Law.com Dictionary [home, info]
  2. Necessary (logic), necessary: Legal dictionary [home, info]
  3. Necessary (logic), Necessary: Financial dictionary [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. Necessary (logic), Necessary (modal logic), necessary: Encyclopedia [home, info]

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

Miscellaneous dictionaries Miscellaneous (4 matching dictionaries)
  1. NECESSARY: Navajo Code Talkers' Dictionary [home, info]
  2. NECESSARY: Acronym Finder [home, info]
  3. necessary: Glosario de términos filosóficos (en inglés) [home, info]
  4. necessary: Idioms [home, info]

Science dictionaries Science (3 matching dictionaries)
  1. Necessary: Eric Weisstein's World of Mathematics [home, info]
  2. necessary: PlanetMath Encyclopedia [home, info]
  3. necessary: FOLDOP - Free On Line Dictionary Of Philosophy [home, info]

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

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (necessary)

noun:  anything indispensable
adjective:  absolutely essential
adjective:  unavoidably determined by prior circumstances ("The necessary consequences of one's actions")
name:  A surname (very rare: popularity rank in the U.S.: #26227)

Word origin

Words similar to necessary

Popular adjectives describing necessary

Popular nouns described by necessary

Phrases that include necessary:   necessary condition, necessary intromission, and other necessary beings, cruel but necessary, find necessary, more...

Words similar to necessary:   requisite, essential, necessaries, necessity, requirement, vital, more...

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