INFORMER

In‐form″er (?), n. [[From Inform, v.]] 1. 1. One who informs, animates, or inspires. Thomson.
Nature, informer of the poet's art. Pope. 2. 2. One who informs, or imparts knowledge or news.
3. 3. (Law) One who informs a magistrate of violations of law; one who informs against another for violation of some law or penal statute.
Common informer (Law), one who habitually gives information of the violation of penal statutes, with a view to a prosecution therefor. Bouvier. Wharton.