upstage vs downstage

upstage and downstage both are nouns.

Word	Noun	Adjective	Verb	Adverb
upstage	Yes	Yes	Yes	Yes
downstage	Yes	Yes	No	Yes

upstage (noun)	downstage (noun)
the rear part of the stage	the front half of the stage (as seen from the audience)

upstage (adjective)	downstage (adjective)
of the back half of a stage	of the front half of a stage
remote in manner

upstage (verb)	downstage (verb)
steal the show, draw attention to oneself away from someone else
move upstage, forcing the other actors to turn away from the audience
treat snobbishly, put in one's place

upstage (adverb)	downstage (adverb)
at or toward the rear of the stage	at or toward the front of the stage