| Language: | Old English |
| Origin: | sliefe |
1DC the part of a piece of clothing that covers all or part of your arm :
a dress with long sleeves
a dress with long sleeves2 to have a secret plan or idea that you are going to use later :
Don't worry. He still has a few tricks up his sleeve.
have something up your sleeve
informal
Don't worry. He still has a few tricks up his sleeve.3APM a stiff paper cover that a record is stored in [= jacket]

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