We found 24 dictionaries that define the word let the cat out of the bag:

General (19 matching dictionaries)

1. let the cat out of the bag: Longman Dictionary of Contemporary English
2. let the cat out of the bag: Merriam-Webster
3. let the cat out of the bag: Oxford Learner's Dictionaries
4. let the cat out of the bag: Collins English Dictionary
5. let the cat out of the bag: Vocabulary.com
6. let the cat out of the bag: Cambridge Advanced Learner's Dictionary
7. let the cat out of the bag: Wiktionary
8. let the cat out of the bag: Dictionary.com
9. Let the cat out of the bag: Wikipedia, the Free Encyclopedia
10. let the cat out of the bag: Rhymezone
11. let the cat out of the bag: FreeDictionary.org
12. let the cat out of the bag: Mnemonic Dictionary
13. Let The Cat Out Of The Bag: A to Z list of the most popular idioms
14. Cat Out of the Bag, Let the: The Word Detective
15. let the cat out of the bag: TheFreeDictionary.com
16. Let the cat out of the bag: World Wide Words
17. Let the cat out of the bag: Phrase Finder

Business (1 matching dictionary)

18. let the cat out of the bag: Merriam-Webster Legal Dictionary

Computing (1 matching dictionary)

19. let the cat out of the bag: Encyclopedia

Miscellaneous (2 matching dictionaries)

20. AbbreviationZ (No longer online)
21. let the cat out of the bag: Idioms

Slang (1 matching dictionary)

22. let the cat out of the bag: Urban Dictionary

Definitions from Wiktionary (let the cat out of the bag) ▸ verb:  (idiomatic) To disclose a secret; to let a secret be known, often inadvertently. Similar: let out, leak out, let slip, tell all, blow the lid off, give the game away, leak, give away, divulge, unsecret, more... Phrases: to let the cat out of the bag, more... Adjectives: deal, attack, go, try, put out, pop-up, contract ▸ Words similar to let the cat out of the bag ▸ Usage examples for let the cat out of the bag ▸ Idioms related to let the cat out of the bag ▸ Wikipedia articles (New!) ▸ Words that often appear near let the cat out of the bag ▸ Rhymes of let the cat out of the bag ▸ Invented words related to let the cat out of the bag