From Wiktionary, the free dictionary
τρίο • (trío) n (indeclinable)
- trio, group of three, triad, troika
- (music) trio
- (spoken) Alternative form of τρία (tría)
- (religion, capitalized) the Trinity
- (trio): τριάδα f (triáda)
- (group of three): τρόικα f (tróika)