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Definition of stool pigeon noun from the Oxford Advanced Learner's Dictionary

stool pigeon

noun
 
/ˈstuːl pɪdʒɪn/
 
/ˈstuːl pɪdʒɪn/
(informal)
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  1. a person, especially a criminal, who helps the police to catch another criminal, for example by spending time with them and getting secret information synonym informer
    Word Originlate 19th cent.: so named from the original use of a pigeon fixed to a stool as a decoy.
See stool pigeon in the Oxford Advanced American Dictionary
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Nearby words

trait
noun
 
 
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