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informer Line breaks: in|form¦er
Pronunciation: /ɪnˈfɔːmə/

Definition of informer in English:


A person who informs on another person to the police or other authority.
Example sentences
  • The prosecutors knew the case details as provided by the undercover police officers, the informers and the supervisors.
  • Police informers are often identified by number rather than by name, for obvious security reasons.
  • The other travelers seemed embarrassed but passive, perhaps the legacy of years of informers and secret police.
betrayer, traitor, Judas, collaborator, double-crosser, fifth columnist, double agent, spy, infiltrator, plant, turncoat;
North American tattletale
informalrat, squealer, stool pigeon, stoolie, telltale, tale teller, whistle-blower, snake in the grass, canary, snitch, peacher
British informalgrass, supergrass, nark, snout, nose
Scottish informalclype
Scottish & Northern Irish informaltout
North American informalfink
Australian/New Zealand informalfizgig, pimp, shelf

Definition of informer in:

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