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We found 32 dictionaries with English definitions that include the word betray:
Click on the first link on a line below to go directly to a page where "betray" is defined.

General (29 matching dictionaries)

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

Business (1 matching dictionary)

28. betray: Legal dictionary [home, info]

Computing (1 matching dictionary)

29. betray: Encyclopedia [home, info]

Slang (1 matching dictionary)

30. betray: Urban Dictionary [home, info]

(Note: See betrays for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (betray) ▸ verb:  deliver to an enemy by treachery ("The spy betrayed his country") ▸ verb:  reveal unintentionally ("Her smile betrayed her true feelings") ▸ verb:  cause someone to believe an untruth ▸ verb:  disappoint, prove undependable to; abandon, forsake ▸ verb:  give away information about somebody ▸ verb:  be sexually unfaithful to one's partner in marriage ▸ Also see betrays ▸ Word origin ▸ Words similar to betray ▸ Usage examples for betray ▸ Idioms related to betray (New!) ▸ Words that often appear near betray ▸ Rhymes of betray ▸ Invented words related to betray