1724, "composition for three voices," from French trio (c. 1600), from Italian trio, from tri- "three" (see three); patterned on duo. Meaning "group of three persons" is from 1789.
例文
1. The trio are part of Sotheby 's sale of Works of Art.
この3つのセットは、蘇富比芸術品オークションに出品されている1点です。
2.a trio for two violins and continuo
2つのバイオリンと通奏低音トリオ
3.a trio for piano,oboe and bassoon
ピアノ、オーボエ及びオーボエトリオ
4.The violinist walked on the stage and the duo became a trio .