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Definitions

infiltrate

[in-fil-treyt, in-fil-treyt] / ɪnˈfɪl treɪt, ˈɪn fɪlˌtreɪt /
VERB
creep in
Synonyms
STRONGEST
penetrate permeate pervade
STRONG
access crack foist impregnate insinuate percolate saturate tinge
WEAK
edge in filter through sneak in work into worm into

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.

Which enables her to gain his confidence and infiltrate his closed world.

From The Wall Street Journal • Apr. 9, 2026

Bainton said the aim of surgery is always to remove the affected tissue while preserving healthy organs, but that this can be challenging because endometriosis can cause fibrosis and may infiltrate nearby structures.

From BBC • Apr. 4, 2026

That has not stopped Ukrainian President Volodymyr Zelensky vowing to infiltrate the messenger.

From Barron's • Mar. 23, 2026

Both cases, including one that got as far as the Supreme Court, underscore the determination of AI promoters and uses to infiltrate the new technology deeper into society.

From Los Angeles Times • Mar. 6, 2026

In August 1925, White sent his undercover operatives to infiltrate the town of Ralston.

From "Killers of the Flower Moon" by David Grann