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
Harry Harris, The Mercury News, 15 Aug. 2024
Authorities also made undercover purchases before executing search warrants at Arellano-Arredondo’s home in September 2020.
—Jonathan Limehouse, USA TODAY, 15 Aug. 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 
Adjective
It was spotted — with Gomez driving — later that day by undercover officers.
—Harry Harris, The Mercury News, 15 Aug. 2024
Authorities also made undercover purchases before executing search warrants at Arellano-Arredondo’s home in September 2020.
—Jonathan Limehouse, USA TODAY, 15 Aug. 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
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.
Dictionary Entries Near undercover
Cite this Entry
“Undercover.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undercover. Accessed 28 Aug. 2024.
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