secretinformant
nounUK /ˈsiː.krɪt ɪnˈfɔː.mənt/
US /ˈsiː.krɪt ɪnˈfɔːr.mənt/
A person who secretly tells someone in charge about things that are happening.
The police caught the robber after a secretinformant told them where he was hiding.
RELATED WORDS
OTHER MEANINGS
2. Someone who gives private information to the police or a newspaper.
A secretinformant gave the reporter the story before anyone else knew.
3. A person who pretends to be a friend but shares your secrets with others.
She felt hurt when she learned her classmate was a secretinformant for the school bully.
4. A hidden helper who passes messages between two groups.
The secretinformant slipped a note under the door so the team would know the plan.