Meaning of the word infiltrator in English

What does infiltrator mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

infiltrator

US /ˈɪn.fɪl.treɪ.t̬ɚ/
UK /ˈɪn.fɪl.treɪ.tər/

Noun

a person who secretly joins a group or organization in order to get information or to influence it

Example:
The police discovered an infiltrator within the criminal organization.
The spy acted as an infiltrator to gather intelligence.