infiltrator
Americannoun
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a soldier, intelligence agent, or other person who moves surreptitiously and gradually into an organization, territory, community, or the like, especially with hostile intent.
Using a false name, the infiltrator participated in meetings and prep sessions with the protest group and had complete access to their documentation.
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a person or thing that causes one substance to pass into another by filtering.
The roots of wetland plants serve as massive water infiltrators, allowing more rainwater to seep into the soil and recharge underground aquifers.
Etymology
Origin of infiltrator
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Zines such as the Infiltrator, Descenes and Vintage Violence track the ever-revolving musical gyre.
From Washington Post • Oct. 10, 2022
Speaking as a Cyberdyne Systems Model 101 Infiltrator, there is no such thing as a neutral Terminator.
From Slate • Nov. 23, 2020
The Infiltrator has had a decidedly odd journey to the cinema.
From The Guardian • Sep. 11, 2016
“The Infiltrator ,” starring Cranston as an undercover agent who loses track of himself in the glamour of the lie, is not “Breaking Bad,” nor is it trying to be.
From Washington Times • Jul. 11, 2016
Infiltrator or not, Tally couldn’t wait to see Shay.
From "Uglies" by Scott Westerfeld
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
