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Undercover

UK //ˌʌndəˈkʌvə//US //ˌʌndərˈkʌvər//

Definition

Working secretly to gather information, especially in law enforcement.

In simple words: Working secretly, especially for the police.

Examples

The officer went undercover to infiltrate the gang.
They conducted an undercover operation to catch the thief.
She worked undercover as a barista to gather intel.
The film follows an undercover cop's dangerous mission.
Undercover agents often face serious risks in their work.
He preferred to operate undercover, avoiding attention.

Usage notes

Used in contexts related to secret missions, especially in law enforcement or espionage. Can convey a sense of stealth or secrecy.

Grammar pattern

standalone adjective

Memory hint

Think of a 'cover' that hides what's underneath; agents wear disguises to stay hidden.

Collocations

undercover agent
undercover operation
undercover work
undercover mission
undercover investigation

Synonyms

covert
secret
surreptitious
clandestine
hidden

Common mistakes

Confused with 'undercover' as a noun instead of an adjective.
Misusing with non-secretive situations.
Overusing in casual contexts when it may require formality.