Definition of informer in English:

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informer

Pronunciation: /inˈfôrmər/

noun

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.
Synonyms
informant, betrayer, traitor, Judas, double-crosser, collaborator, spy, double agent, fifth columnist, infiltrator, plant, tattletale
informal rat, squealer, whistle-blower, snake in the grass, snitch, fink, stool pigeon, stoolie, canary

For editors and proofreaders

Syllabification: in·form·er

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