orchestra
/ˈɔːkɪstrə/noun
1
- treated as sing. or pl. a group of instrumentalists, especially one combining string, woodwind, brass, and percussion sections and playing classical music管弦乐队。
2
- （亦作orchestra pit）the part of a theatre where the orchestra plays, typically in front of the stage and on a lower level乐池。
2.1
- N. Amer. the stalls in a theatre〈北美〉剧院正厅前座。
3
- the semicircular space in front of an ancient Greek theatre stage where the chorus danced and sang古希腊剧场舞台前部半圆形的表演区（供合唱队表演歌舞）。
词源
early 17th cent.: via Latin from Greek orkhēstra, from orkheisthai 'to dance'.