Definition of infiltratenext
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 Simon successfully infiltrated the building, found Trevor's cell, and broke him out, flying them right through the concrete roof. Sydney Bucksbaum, Entertainment Weekly, 29 Jan. 2026 But fashion experts predict that something a little less definitive will infiltrate the market in 2026. Shelby Ying Hyde, Refinery29, 29 Jan. 2026 But recently, a more swashbuckling caste had begun to infiltrate its stacks. Literary Hub, 28 Jan. 2026 An opening gala was held on Monday, during which Prime Minister Benjamin Netanyahu warned that the West’s democratic civilization is under threat from a destructive ideology that has infiltrated every country in Western Europe and the United States. Amelie Botbol, FOXNews.com, 27 Jan. 2026 See All Example Sentences for infiltrate
Recent Examples of Synonyms for infiltrate
Verb
  • What are your theories on how Hyacinth got a dress — and more specifically, a mask — to sneak into the masquerade ball?
    Arushi Jacob, Variety, 31 Jan. 2026
  • The dramatic cover continues to guide the drama of the party, from Queen Charlotte (Golda Rosheuvel) choosing Benedict as her bachelor of the season to Eloise (Claudia Jessie) discovering her sister Hyacinth (Florence Hunt) had snuck in to the ball.
    Jordana Comiter, PEOPLE, 30 Jan. 2026
Verb
  • Callahan spent much of season 4 trying to worm inside Kyle's head and lure him over to the Aryans in order to undercut Mike, but Kyle managed to resist his twisted siren song.
    Randall Colburn, Entertainment Weekly, 28 Dec. 2025
  • Clara ends up moving to the small town and worming her way into everyone’s hearts.
    Literary Hub, Literary Hub, 12 Dec. 2025
Verb
  • Hashibami chose a key from a heavy bundle and inserted it into the door, unlocking it with a click.
    Literary Hub, Literary Hub, 27 Jan. 2026
  • There is a much more civilized way to do this that involves working together with state officials opposed to inserting the administration’s will on a state whose citizens have stood up for their neighbors and said this is not right!
    Ryan Gaydos, FOXNews.com, 27 Jan. 2026
Verb
  • But Saccharine slips off the rails, especially once Hana convinces Josie that Bertha’s spirit has latched onto her in malevolent ways, growing bigger and stronger all the time.
    David Rooney, HollywoodReporter, 3 Feb. 2026
  • The merino/nylon/spandex blend hits all the right notes—excellent moisture management, a performance fit that doesn’t bunch or slip, a just-right height equidistant between ankle and calf, and a surprising amount of warmth even in single-digit temps.
    Scott Douglas, Outside, 3 Feb. 2026
Verb
  • On Wednesday, more than 200 repair crews were at work in Kyiv to restore power, according to the Ukrainian Energy Ministry, which said that staff were exhausted and would be rotated.
    Arkansas Online, Arkansas Online, 5 Feb. 2026
  • Noem said yesterday that ICE agents working in Minneapolis will begin wearing body cameras immediately and that agents across the country will be doing the same once funding becomes available.
    Toluse Olorunnipa, The Atlantic, 4 Feb. 2026

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Cite this Entry

“Infiltrate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infiltrate. Accessed 5 Feb. 2026.

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