prəˈsēnēəm, prōˈ- noun
( -s )
Etymology: Latin, from Greek proskēnion, from pro- pro- (I) + skēnē tent, scene — more at shine
1.
a. : the stage of an ancient theater — see theater illustration
b. : the part of a modern stage in front of the curtain : forestage
c. : the wall that separates the stage from the auditorium in a modern theater
as a frame is to a painting, as a proscenium to a play — Atlantic
2. : the front part : foreground
these thoughts … kept possession of the proscenium of his mind — Thomas Carlyle