infiltrate
verb (used with object)
to filter into or through; permeate.
were infiltrating
-
past progressiveof infiltrate.past progressive
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
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.
In Jihad in America, Emerson used hidden-camera footage to try to build a case that jihadists were infiltrating Middle America.
From Slate ● Apr. 19, 2026
It said Russian troops were infiltrating deeper into the town and disrupting Ukrainian supply routes.
From BBC ● Oct. 30, 2025
The Israeli military said gunmen were infiltrating across the Lebanese border.
From Reuters ● Oct. 13, 2023
Agents should have had independent corrobation and evidence that they were infiltrating a criminal network, he said.
From Washington Times ● Jun. 17, 2017
In the first place, the Lutheran teachings were infiltrating into the country.
From A Political and Social History of Modern Europe V.1. by Carlton J. H. Hayes
