Informer

Pronunciation: /ˌɪnˈfɔːrmər/

Informer (noun)

  1. A person who tells authorities about someone’s wrongdoing, often secretly.
  2. A person who gives private information to journalists or researchers to help them report or study events.

Examples

  • The informer shared a secret tip about the plan.
  • An informer can help the police find the missing evidence.