tribunes is a form of:

Tribune



noun
1.
(បច្ចេកទេស) មេដឹកនាំប្រជាប្រិយ, វេទិកា
ENGLISH MEANING
noun
1.
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.
2.
Anciently, a bench or elevated place, from which speeches were delivered; in France, a kind of pulpit in the hall of the legislative assembly, where a member stands while making an address; any place occupied by a public orator.