undercovers

plural of undercover
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
  • In 2010, 11 deep-cover Russian spies were arrested across the United States, sending shockwaves around the globe.
    — Leo Barraclough, Variety, 5 Oct. 2026
  • Last year, Ken McCallum, MI5’s director-general, said Chinese spies poseda daily national security threat, and were creating fake job adverts to try to lure British professionals into handing over information.
    — CNN Money, CNN Money, 1 Oct. 2026
Noun
  • Jamal allegedly promised to protect the Feeding Our Future operatives against the threat of prosecution, took their money, and then turned some of them over to investigators.
    — Mia Cathell, The Washington Examiner, 5 Oct. 2026
  • To the continued amazement of advantage players, casino operatives can argue with apparent conviction that card counting— essentially mental arithmetic—is a form of fraud.
    — Kit Chellel, Fortune, 5 Oct. 2026
Noun
  • There is currently no payments network for AI agents, Hayes said.
    — Jenny Lee, CNBC, 7 Oct. 2026
  • Which is to say the agents are hustling — and even trying to submit to literary magazines — to stay alive.
    — Jasmine Vojdani, Vulture, 7 Oct. 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.

Browse Nearby Words

Cite this Entry

“Undercovers.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undercovers. Accessed 8 Oct. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster