informant

3 definitions • 4 examples

someone who gives information to another person or organization:

a police/secret informant

Our survey is based on information from over 200 informants.

a person who tells esp. the police or newspaper reporters about something:

He was working as an undercover informant for the police.

a person who answers questions relating to their opinions or feelings about something, so that information can be collected about it:

a survey informant