American English

Definition of coop up phrasal verb from the Oxford Advanced American Dictionary

 

coop up

 phrasal verb
phrasal verb
 
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Phrasal Verbs

coop somebody/something up

[usually passive]
 
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to keep a person or an animal inside a building or in a small space I've been cooped up in that office all day.
See the Oxford Advanced Learner's Dictionary entry: coop up