# infiltrator

> English word · Noun · IPA /ˈɪnfɪltɹeɪtə/ · frequency rank #77,797

## Definitions
1. One who infiltrates an organization or territory; an undercover or covert agent.

## Etymology
From infiltrate + -or.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/infiltrator