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
Joseph Wilkinson, New York Daily News, 17 June 2024
Prieto was then arrested in New Mexico on May 14 and admitted to knowing the undercover agent and the source and discussing the potential attack on a public venue in Atlanta.
—Gil Kaufman, Billboard, 14 June 2024
Guy Lawson, Rolling Stone, 24 Mar. 2024
Back at the hospital Jack tells Brady that working undercover took a lot of courage.
—Jessica Radloff, Glamour, 8 Sep. 2023
See all Example Sentences for undercover 
Adjective
When Gupta asked the source to put him in touch with a hit man, the source connected him with another undercover DEA agent, according to investigators.
—Joseph Wilkinson, New York Daily News, 17 June 2024
Prieto was then arrested in New Mexico on May 14 and admitted to knowing the undercover agent and the source and discussing the potential attack on a public venue in Atlanta.
—Gil Kaufman, Billboard, 14 June 2024
Noun
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
Back at the hospital Jack tells Brady that working undercover took a lot of courage.
—Jessica Radloff, Glamour, 8 Sep. 2023
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 30 Jun. 2024.
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