informernoun [ C ]
uk/ɪnˈfɔː.mər/us/ɪnˈfɔːr.mɚ/a person who gives information in secret, especially to the police:
Most police informers receive a reward for their information.
Thesaurus: synonyms and related words
People who reveal secrets & tell tales
- big mouth
- blabbermouth
- dobber
- fink
- grass
- nark
- rat
- rumour-monger
- scandalmonger
- scaremonger
- sneak
- snitch
- source
- stool pigeon
- supergrass
- tattletale
- telltale
- whistle-blower