Définition "orchestra" dans le dictionnaire Collins English Dictionary & Thesaurus

orchestra (orchestras plural )

1 n-count An orchestra is a large group of musicians who play a variety of different instruments together. Orchestras usually play classical music.
...the Royal Liverpool Philharmonic Orchestra.
→ chamber orchestra
→ symphony orchestra

2 n-sing The orchestra or the orchestra seats in a theatre or concert hall are the seats on the ground floor directly in front of the stage.
(mainly AM)
in BRIT, usually use stalls

chamber orchestra (chamber orchestras plural )A chamber orchestra is a small orchestra which plays classical music. n-count

orchestra pit
In a theatre, the orchestra pit is the space reserved for the musicians playing the music for an opera, musical, or ballet, immediately in front of or below the stage. n-sing

symphony orchestra (symphony orchestras plural )A symphony orchestra is a large orchestra that plays classical music. n-count; n-in-names