Noun
-
the part of a building above the ground floor
"no one was allowed to see the upstairs"
Adjective
-
on or of upper floors of a building
"the upstairs maid"
"an upstairs room"
Adverb
-
with respect to the mind
"she's a bit weak upstairs"
-
on a floor above
"they lived upstairs"
- up the stairs - on a higher floor