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We found 16 dictionaries with English definitions that include the word couldn't:
Click on the first link on a line below to go directly to a page where "couldn't" is defined.

General (14 matching dictionaries)

1. couldn't: Merriam-Webster.com [home, info]
2. couldn't: Oxford Dictionaries [home, info]
3. couldn't: American Heritage Dictionary of the English Language [home, info]
4. couldn't, couldn't: Collins English Dictionary [home, info]
5. couldnt: Macmillan Dictionary [home, info]
6. Couldn't, Couldnt, Couldnt, could'nt, couldn�t, couldn''t, couldn't, couldnt, couldnt, couldnt: Wordnik [home, info]
7. couldn't: Cambridge Advanced Learner's Dictionary [home, info]
8. couldn't, couldnt: Wiktionary [home, info]
9. couldn't: Webster's New World College Dictionary, 4th Ed. [home, info]
10. couldn't: The Wordsmyth English Dictionary-Thesaurus [home, info]
11. couldn't, couldnt: Dictionary.com [home, info]
12. couldnt: Cambridge Dictionary of American English [home, info]
13. couldn't: Dictionary/thesaurus [home, info]
14. couldnt: Wordnik [home, info]

Miscellaneous (1 matching dictionary)

15. couldn't: Idioms [home, info]

Slang (1 matching dictionary)

16. couldn't: Urban Dictionary [home, info]

▸ Words similar to couldn't ▸ Usage examples for couldn't ▸ Words that often appear near couldn't ▸ Rhymes of couldn't ▸ Invented words related to couldn't