Meaning & use

undercover

adjective·Everyday

Last updated

Working or carried out secretly, especially in order to gather information or investigate crime.

See it in a sentence

The undercover officer infiltrated the smuggling ring for months.

She wrote an undercover report on conditions inside the factory.

A note on using this word

Can also function as an adverb, as in 'working undercover.'

Words with a similar meaning

secretcovert

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Words with an opposite meaning

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