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English definition of “orchestra”

orchestra

noun uk   /ˈɔː.kɪ.strə/ us    /ˈɔːr-/

orchestra noun (MUSIC)

B1 [C, + sing/pl verb] a large group of musicians who play many different instruments together and are led by a conductor: She's a cellist in the City of Birmingham Symphony Orchestra.Groups of musicians

orchestra noun (THEATRE)

the orchestra [S] US for stall nounTheatre auditorium and front-of-house
orchestral
adjective uk   /ɔːˈkes.trəl/ us    /ɔːr-/
B2 an orchestral arrangementTypes of music
(Definition of orchestra from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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