Examples of “informant” in a Sentence

noun A person who secretly gives confidential information to authorities, such as the police.

• The detective protected the informant who had tipped him off about the robbery.
• The police relied on an informant inside the gang to make the arrests.
• His identity as an informant was kept secret for his own safety.

noun A native speaker who helps linguists by providing examples and judgments about a language.

• Each informant read a list of words aloud while the linguist took careful notes.
• The student found a willing informant who spoke the village's dialect from childhood.
• The researcher worked with an informant to record the dying dialect.