informer

1. One who reveals confidential information in return for money (synset 110225792)
   is a type of: informant, source - a person who supplies information
   subtypes:

   • canary, fink, sneak, sneaker, snitch, snitcher, stool pigeon, stoolie, stoolpigeon - someone acting as an informer or decoy for the police
   • copper's nark, nark - an informer or spy working for the police
   • grass, supergrass - a police informer who implicates many people
   same as: betrayer, blabber, rat, squealer

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