Emily Dickinson Lexicon

TRIB'UNE, n. [Fr. tribun; L. tribunus, from tribus, tribe; Sp. and It. tribuno.]

1. In ancient Rome, an officer or magistrate chosen by the people, to protect them from the oppression of the patricians or nobles, and to defend their liberties against any attempts that might be made upon them by the senate and consuls. These magistrates were at first two, but their number was increased ultimately to ten. There were also military tribunes, officers of the army, each of whom commanded a division or legion. In the year of Rome 731, the senate transferred the authority of the tribunes to Augustus and his successors. There were also other officers called tribunes; as, tribunes of the treasury, of the horse, of the making of arms, &c. Cyc.
2. A bench or elevated place, from which speeches were delivered.
3. In France, a pulpit or elevated place in the chamber of deputies, where a speaker stands to address the assembly.