infiltrate
verb (used with object)
to filter into or through; permeate.
had infiltrated
-
past perfectof infiltrate.past perfect
Used to express a completed action that took place before another specific past action occurred.
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.
He acknowledged that Russian troops have tried to seize the town and had infiltrated it in small groups.
From Barron's ● Jul. 4, 2026
It was set up after senior police officer Lt-Gen Nhlanhla Mkhwanazi alleged last July that organised crime groups had infiltrated the government.
From BBC ● Jun. 25, 2026
Epstein’s network had infiltrated the boardrooms of hundreds of major U.S. companies, with clear consequences for corporate misconduct affecting employees and the broader business culture.
From Salon ● Jun. 20, 2026
American Apparel stores had infiltrated, corporate coffee was everywhere and artists were getting priced out, heading East into Echo Park, Mt.
From Los Angeles Times ● Nov. 26, 2025
C.P. knew the FBI had infiltrated his unit—agents once had the temerity to try to recruit him.
From "The Best of Enemies" by Osha Gray Davidson
