noun

proscenium

pruh-SEE-nee-um/prəˈsiːniəm/

The front part of a theater stage, framed by an arch.

The actor steps onto the proscenium to address the audience.

An audience-side view of a theater's broad proscenium arch enclosing the raised stage, with two performers inside the opening and empty auditorium seats in the foreground.
Etymology

The components describe the space in front of the stage scenery. That spatial meaning developed into the theater area between the curtain and the orchestra, often including the curtain and its framework.

More examples

  • Footlights illuminate the proscenium during the final scene.
  • The dancers gather on the proscenium for their bows.
  • From the balcony, we have a clear view of the proscenium.

Forms

proscenium · prosceniums · proscenia

Similar words

apron
Specifically the stage area extending beyond the curtain line.
stage
Refers to the entire performance platform, not just its front.