The large piece of fabric that blocks the audience from seeing what we don't want them to see.
Curtains
The person who runs the rehearsal process
Someone who plays a character in a show
Actor
The place where actors get dressed
Dressing rooms
A stage with the audience on three sides that sticks out into the house
Thrust
Where the audience sits
House
The designer who creates/chooses the things that actors use on stage, like cups, pencils, etc.
Props designer
Someone who keeps the costumes organized and together backstage
Dresser
The people who will be watching our performance
Audience
A stage that is created in a space where theatre isn't usually performed
Found space stage
Wings
The designer who helps the most with creating the world of the show
Set designer
The crew who works with the audience to make sure they have their seats and don't have any issues
Front of House
The people who are responsible for bringing things like set pieces on the stage, running things between spost backstage, etc.
Run Crew
A stage with audience on all sides of the performers
Stage in the round
The small room above the audience, facing the stage, where the stage manager, light board, and sound board operate while watching the show
Booth
The person who serves as the assistant to the director in the rehearsal process
Stage Manager
The person who puts on and manages the microphones backstage
A2
The short break for the audience, cast and crew in the middle of a show
Intermission
A stage that can be moved around to be multiple different kinds of stages
Black Box
The specific curtains that block off the sides of the backstage area where actors and crew wait for their entrance
Legs
The designer who does the most to tell the audience which part of the stage to pay attention to
Lighting designer
The person who runs everything outside of the actors and music/dance (like the guy from one of the Aladdin videos)
Technical Director
The time that actors and crew people report to the theatre
Call time
A stage type where the audience is on two sides of the stage, facing each other.
Alley