IPA: /ˈɔːrkɪstrə/
KK: /ˈɔrkɪstrə/
A large group of musicians who play different instruments together, often including strings, woodwinds, brass, and percussion.
The orchestra played beautifully during the concert last night.
Orchestra → It is formed from "orcheistra" (from Greek "orkheisthai", meaning to dance) and "-tra" (a suffix used in forming nouns). The word "orchestra" originally referred to the area in front of the stage in ancient Greek theaters where the chorus would dance and perform, thus connecting it to the act of dancing.
Imagine a space where people 'dance' ('orkheisthai') — that's why an orchestra is associated with music and performance.