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1. On a floor above
   "they lived upstairs";
   - up the stairs, on a higher floor
    
2. With respect to the mind
   "she's a bit weak upstairs"

1. On or of upper floors of a building
   "an upstairs room"; "the upstairs maid";
   - upstair

1. The part of a building above the ground floor
   "no one was allowed to see the upstairs"

Type of: part, portion

Antonym: downstair

Part of: building, edifice

Encyclopedia: Upstairs, Downstairs