Noun informer has 1 sense
  1. informer, betrayer, rat, squealer, blabber - one who reveals confidential information in return for money
    --1 is a kind of informant, source
    --1 has particulars:
     fink, snitch, snitcher, stoolpigeon, stoolie, sneak, sneaker, canary; nark, copper's nark; supergrass
    Derived form: verb inform3
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