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

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Example Sentences

Recent Examples of Synonyms for undercovers
Noun
  • Five categories of spies are described, and espionage is treated as essential to providing rulers and commanders with the foreknowledge needed to make informed strategic decisions.
    Ethan Teekah, Encyclopedia Britannica, 11 Sep. 2026
  • Beyond bioweapons, Russia spies Anthropic also uncovered a Russian espionage operation that used Claude to automate much of its cyber campaign.
    Aamir Khollam, Interesting Engineering, 10 Sep. 2026
Noun
  • Slow Horses fanatics will recognize her as one of the veteran MI5 operatives stuck in the agency’s version of purgatory, known as Slough House.
    David Fear, Rolling Stone, 13 Sep. 2026
  • Neither allowed al-Qaeda to establish new training camps, and Pakistani authorities, in particular, regularly helped the United States arrest and kill the group’s operatives.
    Daniel Byman, Foreign Affairs, 8 Sep. 2026
Noun
  • Patel later suggested that the scope of firings had been overblown, saying many agents had retired on their own.
    Arkansas Online, Arkansas Online, 16 Sep. 2026
  • Agents can call APIs, query databases, retrieve documents, invoke other models, generate files, trigger workflows, connect to SaaS platforms and even delegate work to other agents.
    Nicola Sfondrini, Forbes.com, 15 Sep. 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.

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“Undercovers.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undercovers. Accessed 18 Sep. 2026.

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