Proscenium (noun)

The part of a classical theater stage that is in front of the curtain and separated from the auditorium by the orchestra pit.

Origin:

From the greek word proskenion, meaning 'in front of the stage'.

Examples:

1. The proscenium was the focal point of the theater, where all the action took place.
2. The proscenium arch was a decorative element that framed the stage and separated it from the audience.
3. The proscenium width was important for the design of the set, as it determined the size of the stage area.
4. The proscenium opening was the height and width of the rectangular space between the stage and the proscenium arch.
5. The proscenium lights were used to highlight the performers on stage and set the mood for the show.