Definition of informer in English:



  • A person who informs on another person to the police or other authority.

    • ‘With police and informers everywhere, the Revolution is back with a vengeance.’
    • ‘But, on the other hand, he admitted that he knew where these two informers of his were at the times that he thought their lives might be threatened.’
    • ‘Whether that excludes what used to be called common informers I am not sure.’
    • ‘The opprobrium that once attached to informers, snitches, snouts, shoppers and narks in all walks of life no longer exists.’
    • ‘He'll be chasing down revelations first aired on this program last night that a leaked police report on an informer may have led to his murder.’
    • ‘Some of the papers contained highly sensitive details of informers and information supplied to Special Branch.’
    • ‘Last week the police force were batting away allegations of systemic problems with witnesses or informers getting police protection.’
    • ‘He says he received death threats written in blood and accusing him of being an informer after information he gave police in confidence leaked out.’
    • ‘Gang members came and threatened her as an informer.’
    • ‘Perhaps it was the element of surprise on the part of the organizers which found the police and their informers unprepared.’
    • ‘The prosecution must thus assert a claim to public interest immunity if evidence of the identity of informers is to be excluded.’
    • ‘The prosecutors knew the case details as provided by the undercover police officers, the informers and the supervisors.’
    • ‘It is often used to protect informers, police techniques, or state security.’
    • ‘The father took over in a bloodless coup in 1970 and maintained a vast army of secret police and informers.’
    • ‘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.’
    • ‘There was a substantial body of circumstantial evidence implicating the accused in addition to the informer's evidence.’
    • ‘On the witness stand, the police repeatedly rejected the informer's claims.’
    • ‘The issue with prison informers is that a warning is required in certain terms.’
    • ‘It might be informer-type evidence, prison informers, and so on.’
    betrayer, traitor, judas, collaborator, double-crosser, fifth columnist, double agent, spy, infiltrator, plant, turncoat
    rat, squealer, stool pigeon, stoolie, telltale, tale teller, whistle-blower, snake in the grass, canary, snitch, peacher
    grass, supergrass, nark, snout, nose
    fizgig, pimp, shelf
    intelligencer, beagle
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