symphony orchestra

group of musicians who play long musical compositions together on a collection of many different instruments (usually including string, wind and percussion instruments)

An orchestra is an instrumental ensemble, usually fairly large with string, brass, woodwind sections, and possibly a percussion section as well. The term orchestra derives from the name for the area in front of an ancient Greek stage reserved for the Greek chorus. The orchestra grew by accretion throughout the eighteenth and nineteenth centuries, but changed very little in composition during the course of the twentieth century.
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Noun
1. a large orchestra; can perform symphonies; "we heard the Vienna symphony"
(synonym) symphony
(hypernym) orchestra

symphony orchestra /'simfəni'ɔ:kistrə/
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