We found 7 dictionaries that define the word cost an arm and a leg:

General (5 matching dictionaries)

1. cost an arm and a leg: Merriam-Webster
2. cost an arm and a leg: Oxford Learner's Dictionaries
3. cost (me) an arm and a leg, cost (someone) an arm and a leg: ESL Idiom Page

Miscellaneous (1 matching dictionary)

4. cost an arm and a leg: Idioms

Slang (1 matching dictionary)

5. cost an arm and a leg: Urban Dictionary

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