Meaning of the word informer in English

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

informer

US /ɪnˈfɔːr.mɚ/
UK /ɪnˈfɔː.mər/

Noun

a person who gives information in secret, especially to the police:

Example:
Most police informers receive a reward for their information.