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
Chris Gardner, The Hollywood Reporter, 8 Jan. 2025
During the prosecution’s case, jurors saw floods of emails, undercover videos and wiretapped phone calls in which McClain and ComEd executives discuss hiring Madigan associates, including precinct captains Edward Moody and Ray Nice, former 13th Ward Ald.
—Ray Long, Chicago Tribune, 8 Jan. 2025
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
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Adjective
Reacher dives deep into an undercover ring by securing a job inside the operation though the stakes are high as he’s seen ducking from gunfire, explosions and no shortage of bad guys.
—Chris Gardner, The Hollywood Reporter, 8 Jan. 2025
During the prosecution’s case, jurors saw floods of emails, undercover videos and wiretapped phone calls in which McClain and ComEd executives discuss hiring Madigan associates, including precinct captains Edward Moody and Ray Nice, former 13th Ward Ald.
—Ray Long, Chicago Tribune, 8 Jan. 2025
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 18 Jan. 2025.
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