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Definitions

infiltrator

[in-fil-trey-ter, in-fil-trey-] / ˈɪn fɪlˌtreɪ tər, ɪnˈfɪl treɪ- /
NOUN
intruder
Synonyms
STRONGEST
STRONG


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.

They had to go with the “selfie cruise” narrative, which meant they had to treat them with basic decency because they couldn’t pass them off as some evil infiltrator.

From Slate • Sep. 29, 2025

When Patriot Front members filed a lawsuit against the infiltrator accusing him of “malicious doxxing,” they relied on federal law and invasion of privacy and computer fraud statutes.

From Seattle Times • Nov. 16, 2023

They say the guard may have been a second infiltrator trying to stoke anger and deflect blame.

From New York Times • Nov. 2, 2018

Far from Chick-fil-A being an infiltrator, it seems right at home.

From Washington Times • Apr. 25, 2018

“Should I—there’s no way you could be an infiltrator, is there? Can I trust you?”

From "Among the Hidden" by Margaret Peterson Haddix