From Longman Dictionary of Contemporary Englishorchestra pitˈorchestra pit noun [countable] APMAPTthe space below the stage in a theatre where the musicians sit
Examples from the Corpus
orchestra pit• There in the hidden orchestra pit sat Fein, less gray, and happy to be working.• But there are certain dizzy overtones to her narrative -- she only fell drunk into the orchestra pit once.• He came out on stage and called them all down to the orchestra pit right in front of him. 