as in spies
a person who tries secretly to obtain information for one country in the territory of another usually unfriendly country
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
Synonyms & Similar Words
Relevance
Example Sentences
Recent Examples of Synonyms for undercovers
Noun
-
The indictment also alleges that Cuba's intelligence agency tasked a network of spies in Florida with informing on Brothers to the Rescue.—
Sarah N. Lynch,
CBS News,
20 May 2026 -
Before the shoot-down, Cuban spies had infiltrated the Brothers to the Rescue group.—
Nora Gámez Torres,
Miami Herald,
20 May 2026
Noun
-
To complete the task, Rachel needs to bring in a pair of expert extractors, Sid (Cavill) and Bronco (Gyllenhaal), and their team of covert operatives because Manny lives on an island guarded by a private army whose members are locked and loaded with high-tech weaponry.—
Tim Lammers,
Forbes.com,
1 June 2026
-
There should be no place in our politics for incompetent, opportunistic operatives who violate privacy, betray trust, and prioritize vengeance over decency.—
Jared Kofsky,
ABC News,
1 June 2026
Noun
-
Federal agents and local law enforcement met the aircraft upon arrival and assisted with the investigation.—
Anthony Thompson,
USA Today,
30 May 2026
-
Hosted by real estate agents and mortgage advisors, this event raises funds for Lyric, a nonprofit that helps LGBTQ+ youth in the Bay Area and features drag performances, cocktails, food, music and more.—
Kate Bradshaw,
Mercury News,
30 May 2026
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Cite this Entry
“Undercovers.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undercovers. Accessed 5 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
