Definition of undercover in English:



  • Involving secret work within a community or organization, especially for the purposes of police investigation or espionage.

    ‘an undercover police operation’
    as adverb ‘he worked undercover in Northern Ireland’
    • ‘In March 1999, police began an undercover surveillance operation on the prison officer.’
    • ‘Two cases emphasise the need for the use of cautions in connection with police undercover operations.’
    • ‘The charges arise out of a police undercover operation in the latter part of 1998.’
    • ‘An undercover police officer had recorded conversations with both men.’
    • ‘A heroin addict caught supplying drugs to police in an undercover investigation has been jailed for four years.’
    • ‘At first he suspected I was an undercover police officer and they were being set up.’
    • ‘Two drug dealers were jailed for a total of more than seven years after an undercover police operation led to their arrests.’
    • ‘How the undercover police officers managed to make their way inside was not revealed.’
    • ‘An undercover police operation has snared eight dealers who provided a class A drugs on wheels delivery service.’
    • ‘This is the haul of alcohol seized by police in an undercover operation targeting young drinkers.’
    • ‘Townend said he believed they were undercover police officers.’
    • ‘During the day, he was approached at different times by three undercover police officers and each time he sold four pills to each of them.’
    • ‘During the trial, two undercover police officers gave evidence from behind a screen to protect their identities.’
    • ‘Woodall told the jury at the trial she believed Douglas was an undercover police officer from Greater Manchester.’
    • ‘She pleaded guilty to offering to supply heroin to undercover police officers.’
    • ‘I did not go around believing that I was an undercover policeman or an Interpol agent.’
    • ‘In Ireland, the new arrivals were soon being tailed by police and undercover agents.’
    • ‘Metro police has 24 undercover officers who are constantly on the look out for illegal activity.’
    • ‘His scam ran for three years, ending in September 2001, after a sting conducted by undercover police.’
    • ‘The three men were caught after an undercover surveillance operation.’
    covert, secret, clandestine, private, confidential, conspiratorial, underground, surreptitious, furtive, cloak-and-dagger, hole-and-corner, hugger-mugger, back-alley, backstair, stealthy, closet
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/ʌndəˈkʌvə/ /ˈʌndəkʌvə/