資料來源 : Webster's Revised Unabridged Dictionary (1913)
Informer \In*form"er\, n. [From {Inform}, v.]
1. One who informs, animates, or inspires. [Obs.] --Thomson.
Nature, informer of the poet's art. --Pope.
2. One who informs, or imparts knowledge or news.
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.