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We found 39 dictionaries with English definitions that include the word activate:
Click on the first link on a line below to go directly to a page where "activate" is defined.

General (28 matching dictionaries)

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

Business (2 matching dictionaries)

27. activate: Legal dictionary [home, info]
28. activate: BusinessDictionary.com [home, info]

Computing (1 matching dictionary)

29. activate: Encyclopedia [home, info]

Medicine (4 matching dictionaries)

30. activate: online medical dictionary [home, info]
31. activate: Dictionary of Cancer Terms [home, info]
32. activate: Medical dictionary [home, info]
33. activate: Hyperdictionary [home, info]

Miscellaneous (1 matching dictionary)

34. ACTIVATE: Acronym Finder [home, info]

Slang (1 matching dictionary)

35. activate: Urban Dictionary [home, info]

Tech (2 matching dictionaries)

36. Activate: AUTOMOTIVE TERMS [home, info]
37. Activate: Dictionary for Avionics [home, info]

(Note: See activator for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (activate) ▸ verb:  make active or more active ("Activate an old file") ▸ verb:  make (substances) radioactive ▸ verb:  aerate (sewage) so as to favor the growth of organisms that decompose organic matter ▸ verb:  make more adsorptive ("Activate a metal") ▸ verb:  put in motion or move to act ▸ Also see activator ▸ Words similar to activate ▸ Usage examples for activate ▸ Idioms related to activate (New!) ▸ Words that often appear near activate ▸ Rhymes of activate ▸ Invented words related to activate