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trib·une 1(trĭb′yo͞on′, trĭ-byo͞on′)
1. An officer of ancient Rome elected by the plebeians to protect their rights from arbitrary acts of the patrician magistrates.
2. A protector or champion of the people.
[Middle English, from Old French tribun, from Latin tribūnus, from tribus, tribe; see tribe.]
trib′u·nar′y (trĭb′yə-nĕr′ē) adj.
trib·une 2(trĭb′yo͞on′, trĭ-byo͞on′)
1. A raised platform or dais from which a speaker addresses an assembly.
2. The usually domed or vaulted apse of a basilica.
3. See gallery.
[French, from Old French, part of a church, speaking platform, from Old Italian tribuna, from Medieval Latin tribūna, alteration of Latin tribūnal; see tribunal.]