I feel significantly safer upstair than upon the freeway with civilians.
From the latimes.com
For years it has run a hotel offering 35 modest rooms and suites upstair in the Bay Area city.
From the latimes.com
This son also would threaten to throw himself out of the upstair windows and jump out of the moving car.
From the psychcentral.com
More examples
Upstairs: on or of upper floors of a building; "the upstairs maid"; "an upstairs room"
Stairway, staircase, stairwell, flight of stairs or simply stairs are names for a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances, called steps. ...
(upstairs) located higher up a building; a pitched ball that is high, and usually outside the strike zone; Up the stairs; on a higher floor or level
(Upstairs) The upper area of the board
(Upstairs) The electronics on the observing platform, generally either inside the Gregorian enclosure or on the Carriage House.
(Upstairs) The floors of a house located above the ground or main floor.
(Upstairs) can indicate either your spiritual side or your intellect. Look for other symbols that indicate Spirituality in the same dream.
(Upstairs) in Downton Abbey: The Three Crawley Sisters
(upstairs) As in "We'll go upstairs." It means we are going to ask the advice of the television match official.