as in to sneak
to introduce in a gradual, secret, or clever way over time, undercover agents infiltrated the crime ring and eventually busted their gambling racket

Synonyms & Similar Words

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Example Sentences

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.
Recent Examples of infiltrate The rule dates back to the 19th century and was founded by old-money circles in the Northeast to differentiate themselves from the nouveau riche trying to infiltrate the social elite. Starr Bowenbank, PEOPLE, 4 Sep. 2025 Wednesday then infiltrates Isaac and Francoise’s operation. Selome Hailu, Variety, 4 Sep. 2025 Similar to how Metal Gear Solid Delta protagonist Snake can equip various camo to blend in with his environment, Agent 47 can don different costumes to infiltrate his target’s surroundings. George Yang, Vulture, 3 Sep. 2025 Applicators infiltrated cities across the nation, coating the chemical on street trees, parks and front lawns. Sophie Hartley, IndyStar, 3 Sep. 2025 See All Example Sentences for infiltrate
Recent Examples of Synonyms for infiltrate
Verb
  • Aloe vera sneaks in lightweight hydration, and wheat protein helps strengthen to keep breakage at bay.
    Christa Joanna Lee, Allure, 10 Sep. 2025
  • Read about a man who has snuck into prestigious events for nearly a decade.
    Alexandra Banner, CNN Money, 10 Sep. 2025
Verb
  • But Donaggio prefers to worm his way into your brain — and into the deepest pit of fears in your stomach.
    David Ehrlich, IndieWire, 20 Aug. 2025
  • Last month, hackers wormed their way into Tea and accessed sensitive user data; 70,000 user images and more than 1 million private messages reportedly were leaked, including communications about abortions, users’ driver’s-license photos, and phone numbers that had been shared in private messages.
    Albert Fox Cahn, The Atlantic, 11 Aug. 2025
Verb
  • By inserting an extra biochemical cycle into a model plant, the researchers boosted growth, seed yield, and fat production without increasing water demand.
    Aamir Khollam, Interesting Engineering, 13 Sep. 2025
  • The full-on answers are below for each group, finally inserting the four words in each category.
    Erik Kain, Forbes.com, 13 Sep. 2025
Verb
  • What could have been a transformative meditation on mourning too often slips into surface-level spectacle, leaving the audience to piece together meaning from a scattershot collage of influences.
    David Hochman, Forbes.com, 14 Sep. 2025
  • The attempt was tipped and brought in by Locke, who slipped loose into the secondary before taking off for a 64-yard touchdown reception.
    Brendan Connelly, Boston Herald, 13 Sep. 2025
Verb
  • Unlike ordinary glues, this substance works in wet, salty, and constantly moving conditions, forming a tough bond that resists both pressure and erosion.
    Christopher McFadden, Interesting Engineering, 13 Sep. 2025
  • Mendoza, now 21, also had spent some time working in the fields.
    ProPublica, ProPublica, 13 Sep. 2025

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Cite this Entry

“Infiltrate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infiltrate. Accessed 17 Sep. 2025.

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