informant /ɪnˈfoɚmənt/ noun plural informants
plural informants
Learner's definition of INFORMANT
[count]
1
: a person who gives information to the police about secret or criminal activities : informer告发者;告密者;线人 2
technical : a person who gives information about his or her culture or language to a researcher(为研究者)提供资料的人