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
Devoun Cetoute, Miami Herald, 15 May 2024
The undercover operations resulted in numerous arrests related to narcotics, but Eastlick wanted to be clear that none of the individuals arrested during the investigations were linked to the overdoses.
—Greg Wehner, Fox News, 9 May 2024
See all Example Sentences for undercover 
Adjective
Two Miami-Dade police detectives were caught in a hail of gunfire while driving through a neighborhood near Miami Shores in an undercover car late Monday night, police said.
—Devoun Cetoute, Miami Herald, 15 May 2024
The undercover operations resulted in numerous arrests related to narcotics, but Eastlick wanted to be clear that none of the individuals arrested during the investigations were linked to the overdoses.
—Greg Wehner, Fox News, 9 May 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 18 May. 2024.
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