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 pair, who were arrested in May 2022 while visiting Iran, were accused by Iranian state television of being spies who sought to stir up unrest, according to Reuters.—
Greg Norman-Diamond,
FOXNews.com,
7 Apr. 2026 -
The spies called it right, but the president went another direction.—
Shane Harris,
The Atlantic,
5 Apr. 2026
Noun
-
Israel claims to have killed hundreds of Hezbollah operatives in the latest bombardment and ground invasion.—
Arkansas Online,
Arkansas Online,
7 Apr. 2026
-
One of the officials said the March 3 drone strike that hit the tanker was launched by Ukrainian operatives in a military facility in Tripoli.—
Samy Magdy,
Los Angeles Times,
7 Apr. 2026
Noun
-
Ashwin Sreenivas, president of AI startup Decagon, said the advent of coding agents has led to a number of shifts within his company.—
Ashley Capoot,
CNBC,
11 Apr. 2026
-
The action kicked off in the Bronx, where agents descended on a Selwyn Ave.—
Colin Mixson,
New York Daily News,
11 Apr. 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 13 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
