undercover

[US]/ʌndə'kʌvə/

[UK]/'ʌndɚ'kʌvɚ/

Frequency: Very High

Translation

adj. conducted secretly or confidentially; engaged in espionage or covert operations.

undercover agent

an undercover police operation.

he worked undercover in Northern Ireland.

A federal judge upheld the undercover methods used in the case.

undercover officers spent most of their time hanging around bars.

BBC undercover reporter was offered a binal body part for sell by witch doctors.Karen Allen reports.

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