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Definitions

infiltration

[in-fil-trey-shuhn] / ˌɪn fɪlˈtreɪ ʃən /






NOUN
seepage
Synonyms


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.

One tactic was by far the most effective: infiltration.

From Salon • Feb. 15, 2026

California banned phones in public school classrooms beginning in January, largely in response to the infiltration of social media.

From Los Angeles Times • Feb. 9, 2026

One man has claimed responsibility for the infiltration, saying he did so to detect radiation levels from the North's Pyongsan uranium processing facility.

From Barron's • Jan. 21, 2026

The short June war with Israel also exposed the government’s weakness and its inability to protect itself from infiltration by Israeli spies.

From The Wall Street Journal • Dec. 30, 2025

In July of that year, the committee announced a new round of investigations, but this time into something far more serious than the communist infiltration of Hollywood.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau




Vocabulary lists containing infiltration