dans le dictionnaire PONS
or·ches·tra [ˈɔ:kɪstrə, Am ˈɔ:r-] SUBST
1. orchestra + sing/pl vb (musicians):
- orchestra
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- school orchestra
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2. orchestra (orchestra pit):
- orchestra
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ˈcham·ber or·ches·tra SUBST
- chamber orchestra
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ˈor·ches·tra pit SUBST
- orchestra pit
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string ˈor·ches·tra SUBST
- string orchestra
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