What is the Latin word for denouncer?

The usual Latin words for “denouncer” are accūsō, dēlātor, index. The right choice depends on the sense; see the distinctions below.

English → Latin

“denouncer” in Latin

accūsōto blame, reproach, make a complaint against, find fault with; to indict, accuse, arraign, charge dēlātoraccuser, informer, informant, denouncer indexA pointer, indicator.; The index finger, forefinger.; An index, list, catalogue, table, summary, digest.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

denouncer

accusator; qui accusat (PROP. in a criminal process; then as a general term): a secret denouncer, delator (Silver Age): index (general term for informant, informer; Sestius ab indice Cnaeus Nerio de ambitu est postulatus).

Quick answer

What is the Latin word for denouncer?: The usual Latin words for “denouncer” are accūsō, dēlātor, index. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.