51Թ

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View synonyms for

infiltrate

[ in-fil-treyt, in-fil-treyt ]

verb (used with object)

infiltrated, infiltrating.
  1. to filter into or through; permeate.
  2. to cause to pass in by filtering.
  3. to move into (an organization, country, territory, or the like) surreptitiously and gradually, especially with hostile intent:

    The troops infiltrated the enemy lines.

  4. to pass a small number of (soldiers, spies, or the like) into a territory or organization clandestinely and with hostile or subversive intent:

    The intelligence agency infiltrated three spies into the neighboring country.



verb (used without object)

infiltrated, infiltrating.
  1. to pass into or through a substance, place, etc., by or as by filtering.
  2. Pathology. to penetrate tissue spaces or cells.

noun

  1. something that infiltrates.
  2. Pathology. any substance penetrating tissues or cells and forming a morbid accumulation.

infiltrate

/ ˈɪԴɪˌٰɪ /

verb

  1. to undergo or cause to undergo the process in which a fluid passes into the pores or interstices of a solid; permeate
  2. military to pass undetected through (an enemy-held line or position)
  3. to gain or cause to gain entrance or access surreptitiously

    they infiltrated the party structure

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. something that infiltrates
  2. pathol any substance that passes into and accumulates within cells, tissues, or organs
  3. pathol a local anaesthetic solution injected into the tissues to cause local anaesthesia
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • ˈԴھˌٰپ, adjective
  • ˌԴھˈٰپDz, noun
  • ˈԴھˌٰٴǰ, noun
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Other 51Թ Forms

  • ·ھ·ٰ·پ [in, -fil-trey-tiv, in-, fil, -tr, uh, -], adjective
  • ·ھ·ٰ·ٴǰ [in, -fil-trey-ter, in-, fil, -trey-], noun
  • ··ھ·ٰٱ verb reinfiltrated reinfiltrating
  • ܲ··ھ·ٰ· adjective
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51Թ History and Origins

Origin of infiltrate1

First recorded in 1750–60; in- 2 + filtrate
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51Թ History and Origins

Origin of infiltrate1

C18: from in- ² + filtrate
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Example Sentences

Examples have not been reviewed.

Hackers contacted the BBC with proof they had infiltrated IT networks and stolen huge amounts of customer and employee data.

From

FBI agent Richard Miller acknowledged his secret dealings with the Soviets, but claimed he did so to infiltrate Soviet intelligence and redeem his career.

From

Under Trump’s direction, Musk’s workers had already infiltrated much of the federal government in a lightning operation designed to overwhelm.

From

Yes, Miller explained, he’d been secretly seeing Ogorodnikova, but only as part of a bold, self-styled plan to infiltrate Soviet intelligence.

From

Disneyland is launching multiple merchandising lines for its 70th anniversary, some of which have already started to infiltrate the parks.

From

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