Synonyms of informer in English:

informer

noun

  • 1 an informer for the CIA
    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
  • Definition of informer in:

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    Word of the day flagitious
    Pronunciation: fləˈdʒɪʃəs
    adjective
    (of a person or their actions) criminal; villainous