Denouncer meaning

The European ferment of ideas which preceded the French Revolution expressed itself in men like Alfieri, the fierce denouncer of tyrants, Beccaria, the philosopher of criminal jurisprudence, Volta, the physicist, and numerous political economists of Tuscany.

In the House of Commons he soon made his mark as a radical, and as a denouncer of naval abuses.

As the cult of the Phytalidae sank into insignificance beside the greater mysteries, the term sycophant survived in popular language in the sense of an informer or denouncer, whose charges deserved but little consideration.