Theatre Terms

image of question markHere you'll find over 1000 definitions of theatrical terms, from Aside, Beam Angle, and Camlock, to Upstaging, VU Meter, and Wagon.  Fully searchable, our glossary is helpful for technical staff, directors, actors, producers, or anyone wanting to better understand the inner workings of theatre.

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Click on a letter (A-Z) below to find terms beginning with the specified letter, or enter a word in "Search for Term." You can also enter a word in "Words in Definition." For example, entering the word "curtain" would display all words whose definition includes that word. (Note: If the A-Z or word search has been activated, it must be reset before using "Search for Term" or "Words in Definition." To reset the A-Z search: Click Here)

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Term Definition Link
FALSE PROSCENIUM A frame formed by scenic canvas or vertical flattage within the proscenium arch. Used to reduce the size of the opening when putting a small set onto a large stage.
PROSCENIUM The opening in the wall that stands between stage and auditorium in some theatres; the picture frame through which the audience sees the play. The "fourth wall." Also proscenium arch.
PROSCENIUM STAGE A stage framed by a proscenium arch. This is the most common type of stage (others include thrust and arena.)
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