1. Drop Curtain: A large curtain that hangs vertically at the front of the stage. It is used to conceal the stage from the audience before the start of the performance, during scene changes, and at the end of the performance.
2. Drop: A painted canvas or other material that hangs from the ceiling or a fly bar above the stage. Drops are used to create scenery and set the mood or atmosphere of a scene. They can represent walls, trees, landscapes, sky, or any other desired visual element.
3. Drop In: To join a cast or production after rehearsals have already started.
4. Drop Out: To leave a cast or production before the end of the run.
5. Drop Mic: A slang term used in theater to indicate the end of a performance or scene. It is often used to elicit applause or laughter from the audience.