informant
noun /ɪnˈfɔːmənt/
/ɪnˈfɔːrmənt/
- a person who gives secret information about somebody/something to the police or the media synonym informer
- a police informant
- The journalist refused to reveal the identity of his informant.
- (specialist) a person who gives somebody information about something, for example to help them with their research
- His informants were middle-class professional women.