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proscenium

American  
[proh-see-nee-uhm, pruh-] / proʊˈsi ni əm, prə- /

noun

Theater.
  • proscenia
    plural
  1. Also called proscenium arch. the arch that separates a stage from the auditorium. pros.

  2. (formerly) the apron or, especially in ancient theater, the stage itself.


proscenium British  
/ prəˈsiːnɪəm /

noun

  1. the arch or opening separating the stage from the auditorium together with the area immediately in front of the arch

  2. (in ancient theatres) the stage itself

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms


Etymology

Origin of proscenium

1600–10; < Latin proscēnium, proscaenium < Greek proskḗnion entrance to a tent, porch, stage ( Late Greek: stage curtain), equivalent to pro- pro- 2 + skēn ( ḗ ) ( see scene) + -ion neuter noun suffix


Explanation

The proscenium of a theater stage is a structure in front of the stage that frames the action of the play. It can be square or arched, and the stage curtain is generally directly behind it. The ancient Greeks gave us the modern concept of theater and, with it, the proscenium, one of the divisions of the stage. The word itself can be broken down into prō-, "in front of," and skēnē, "scene": The proscenium is thus the part "in front of the scenery." In a modern theater, the proscenium makes up the so-called "fourth wall," the invisible barrier that separates the stage from the audience and through which the audience watches the action.

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Vocabulary lists containing proscenium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The proscenium frame was a giant hole blasted through a concrete wall with ends of rebar sticking out.

From The Wall Street Journal ● Sep. 24, 2026

The stage retains the sweeping, curved proscenium that has defined the Dolby Theatre era, suggesting a similar visual approach at a larger scale, with expanded screen space and a more immersive ceiling design.

From Los Angeles Times ● Mar. 26, 2026

The last decade has seen a harlequinade of big shots, celebrities, pundits and politicians bounding across the proscenium wearing stage makeup and playing different characters successively, like Peter Sellers in “Dr. Strangelove.”

From Salon ● Dec. 20, 2025

The fourth wall, encoded in the architecture of the proscenium stage, fosters the illusion that audiences are eavesdropping on a cordoned off reality.

From Los Angeles Times ● Dec. 8, 2025

But just when I thought I was going to get away, the creaky machinery of his face began to grind and a cardboard dawn of recognition was lowered, with jerks, from the dusty proscenium.

From "The Secret History" by Donna Tartt

These, however, are sufficient to mark out the circuit of the ancient orchestra, on which the subsequently built proscenia encroached.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" by Various

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