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We found 52 dictionaries with English definitions that include the word impact:
Click on the first link on a line below to go directly to a page where "impact" is defined.

General dictionaries General (32 matching dictionaries)
  1. impact: Dictionary/thesaurus [home, info]
  2. impact: LookWAYup Translating Dictionary/Thesaurus [home, info]
  3. impact: WordNet 1.7 Vocabulary Helper [home, info]
  4. impact: Mnemonic Dictionary [home, info]
  5. impact: Hutchinson Dictionaries [home, info]
  6. impact: Free Dictionary [home, info]
  7. impact, IMPACT: Stammtisch Beau Fleuve Acronyms [home, info]
  8. impact: Webster's 1828 Dictionary [home, info]
  9. impact (f), impact (de), impact: AllWords.com Multi-Lingual Dictionary [home, info]
  10. impact: Rhymezone [home, info]
  11. impact: Webster's Revised Unabridged, 1913 Edition [home, info]
  12. Impact: Online Plain Text English Dictionary [home, info]
  13. impact: Cambridge International Dictionary of Phrasal Verbs [home, info]
  14. Impact, Impact (video game player), Impact (typeface), Impact (student magazine), Impact (novel), Impact (miniseries), Impact (mechanics), Impact (film), Impact (custom car), Impact (band), Impact (UNESCO magazine), Impact (TV programme), Impact (TV miniseries), Impact (EP), Impact (EC Comics), IMPACT, IMPACT (organisation), IMPACT (computer graphics): Wikipedia, the Free Encyclopedia [home, info]
  15. impact: Cambridge Dictionary of American English [home, info]
  16. impact, Impact: UltraLingua English Dictionary [home, info]
  17. impact (v.): Online Etymology Dictionary [home, info]
  18. impact, Impact: Dictionary.com [home, info]
  19. impact: Infoplease Dictionary [home, info]
  20. impact: The Wordsmyth English Dictionary-Thesaurus [home, info]
  21. impact: Webster's New World College Dictionary, 4th Ed. [home, info]
  22. impact: Wiktionary [home, info]
  23. impact: Cambridge Advanced Learner's Dictionary [home, info]
  24. impact, Impact: Wordnik [home, info]
  25. impact, impact: Macmillan Dictionary [home, info]
  26. impact: Vocabulary.com [home, info]
  27. impact: Collins English Dictionary [home, info]
  28. impact: American Heritage Dictionary of the English Language [home, info]
  29. impact: Oxford Dictionaries [home, info]
  30. impact: Merriam-Webster.com [home, info]

Business dictionaries Business (4 matching dictionaries)
  1. impact: BusinessDictionary.com [home, info]
  2. impact: Legal dictionary [home, info]
  3. Impact: Construction Term Glossary [home, info]
  4. Impact: MoneyGlossary.com [home, info]

Computing dictionaries Computing (3 matching dictionaries)
  1. impact: Encyclopedia [home, info]
  2. Impact: Internet Terms [home, info]
  3. Impact: Cybernetics and Systems [home, info]

Medicine dictionaries Medicine (4 matching dictionaries)
  1. Impact: Drug Medical Dictionary [home, info]
  2. IMPACT: Medical dictionary [home, info]
  3. impact: online medical dictionary [home, info]
  4. Impact: MedTerms.com Medical Dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (4 matching dictionaries)
  1. impact: Idioms [home, info]
  2. IMPACT: AbbreviationZ [home, info]
  3. IMPACT: Acronym Finder [home, info]
  4. IMPACT: Navajo Code Talkers' Dictionary [home, info]

Science dictionaries Science (1 matching dictionary)
  1. impact: Evolution Glossary [home, info]

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

Sports dictionaries Sports (1 matching dictionary)
  1. impact: Golfer's Dictionary [home, info]

Tech dictionaries Tech (2 matching dictionaries)
  1. Impact: National Glass Association Glossary [home, info]
  2. Impact: AUTOMOTIVE TERMS [home, info]

(Note: See impacts for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (impact)

noun:  the striking of one body against another
noun:  a forceful consequence; a strong effect ("The book had an important impact on my thinking")
noun:  the violent interaction of individuals or groups entering into combat
noun:  influencing strongly
verb:  press or wedge together; pack together
verb:  have an effect upon

▸ Also see impacts
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Phrases that include impact:   environmental impact assessment, impact crater, environmental impact, charpy impact test, ecological impact, more...

Words similar to impact:   affect, encroachment, impacted, impacter, impacting, impactive, impactor, impingement, shock, touch, bear on, bear upon, collision, touch on, more...

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