informant

IPA: ɪnfˈɔrmʌnt

One who relays confidential information to someone, especially to the police; an informer.
(linguistics) A native speaker who acts as a linguistic reference for a language being studied. The informant demonstrates native pronunciation, provides grammaticality judgments regarding linguistic well-formedness, and may also explain cultural references and other important contextual information.

Examples of "informant" in Sentences

We know our informant is real, and we know their next target.
BLITZER: The word informant has, sometimes, a sinister connotation, Steve, as you know.
The CIA agents killed by an informant is a pretty good indicator that profiling has its limits.
Peter Kellner denies these are the right figures, but the site's informant is standing by his claim.
Noel ordered that the file be turned over to Harkat's lawyers forthwith, even though a CSIS informant is named in it.
"Jericho" (CBS) -- Deaf actress Shoshannah Stern has played Bonnie Richmond on the sci-fi show for two years, and according to my informant is beloved character.
SEEING the same intelligence would have required asking pefect questions, searching reams of paper to find the hidden qualifiers, such as “the informant is a liar.”
In other Wire news, this week's episode confirmed that Lester Fremon and Shardene (the much younger stripper turned informant from the 1st season) are still an item.
The involvement of a paid government informant is the only reason four Newburgh, N.Y., men are facing charges they engaged in a plot to blow up a Bronx synagogue and to shoot down military planes last year, defense lawyers said Tuesday.