un·der·cov·er
ˌən-dər-ˈkə-vər 
: acting or executed in secret
specifically
: employed or engaged in spying or secret investigation
an undercover agent
undercover
adverb
Synonyms
Examples of undercover in a Sentence
Adjective
an undercover operation to infiltrate the terrorist organization
for months she's been an undercover agent pretending to be a drug dealer
Noun
within the city was a well-organized fifth column, and these undercovers would make themselves known as soon as the invading forces breached the city limits
Recent Examples on the Web
Dan Rosenzweig-Ziff, Washington Post, 13 Apr. 2024
On this day, Downey was Claude, the C.I.A. handler for Xuande’s character, who is known as the Captain, a nameless Communist spy whose undercover assignment leads him to Los Angeles after the fall of Saigon in 1975.
—Brandon Yu, New York Times, 12 Apr. 2024
See all Example Sentences for undercover 
Adjective
Rocha also agreed in the plea agreement to work undercover for the U.S. government should agents request it.
—Dan Rosenzweig-Ziff, Washington Post, 13 Apr. 2024
On this day, Downey was Claude, the C.I.A. handler for Xuande’s character, who is known as the Captain, a nameless Communist spy whose undercover assignment leads him to Los Angeles after the fall of Saigon in 1975.
—Brandon Yu, New York Times, 12 Apr. 2024
See all Example Sentences for undercover
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undercover.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Undercover.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undercover. Accessed 4 May. 2024.
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