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
Carly Tagen-Dye, Peoplemag, 27 May 2024
This comfy, discreet undercover wallet comes in two sizes to fit multiple bra sizes.
—Becca Blond, Travel + Leisure, 26 May 2024
See all Example Sentences for undercover 
Adjective
The commissar at the encampment is Man, the Captain and Bon’s old friend, and the Captain’s direct superior as an undercover agent.
—Carly Tagen-Dye, Peoplemag, 27 May 2024
This comfy, discreet undercover wallet comes in two sizes to fit multiple bra sizes.
—Becca Blond, Travel + Leisure, 26 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 30 May. 2024.
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