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
Rachel Smith, The Courier-Journal, 6 Nov. 2024
Lambesis infamously spent nearly three years in prison after pleading guilty to soliciting an undercover cop to murder his then-wife and relaunched the band in 2018 after his release from prison.
—Emily Zemler, Rolling Stone, 5 Nov. 2024
Justin Kroll, Deadline, 11 July 2024
Blazer had been wearing a wire, working in tandem with an FBI undercover, ensnaring more than ten coaches in an elaborate plot that revealed corruption in the basketball programs at Louisville, Arizona, LSU, USC and other schools.
—Guy Lawson, Rolling Stone, 24 Mar. 2024
See all Example Sentences for undercover 
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Adjective
Federal law enforcement say Philippi told an undercover agent about his previous affiliations with extremist groups, including the Atomwaffen Division and National Alliance.
—Rachel Smith, The Courier-Journal, 6 Nov. 2024
Lambesis infamously spent nearly three years in prison after pleading guilty to soliciting an undercover cop to murder his then-wife and relaunched the band in 2018 after his release from prison.
—Emily Zemler, Rolling Stone, 5 Nov. 2024
Noun
Starring Sean Penn, it was based on a book Crowe wrote after spending a year undercover as a student at Clairemont High School in San Diego.
—Justin Kroll, Deadline, 11 July 2024
Blazer had been wearing a wire, working in tandem with an FBI undercover, ensnaring more than ten coaches in an elaborate plot that revealed corruption in the basketball programs at Louisville, Arizona, LSU, USC and other schools.
—Guy Lawson, Rolling Stone, 24 Mar. 2024
See all Example Sentences for undercover
Dictionary Entries Near undercover
Cite this Entry
“Undercover.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undercover. Accessed 26 Nov. 2024.
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