| A | B |
| gelatins | transparent color sheets inserted into a frame in front of a spotlight or floodlight |
| going up | forgetting one's lines during a rehearsal or performance; blanking |
| greenroom | a room where actors relax before and after performances |
| house | another name for auditorium, the place where the audience sits |
| house lights | auditorium lights used before and after the play and during intermission |
| illusion of the first time | the actor's ability to perform in a show over and over while making it appear that the dialogue and situations are just happening |
| improvisation | an impromptu scene where the actors make up the dialogue and action on the spot |
| instrument | term used to refer to a stage light |
| Method acting | an approach that calles on the actor to use personal experience and sense memory to develop a character |
| monologue | a long speech by one character |
| motivation | 1. a specific reason for saying or doing something; 2. to show a character's desires |
| off book | having a part memorized so that the script is no longer needed |