[1] : The Collaborative International Dictionary of English v.0.48

upstairs \upstairs"\, adv.
   up the stairs; in or toward an upper story.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

upstairs \up"stairs`\, a.
   being above stairs; as, an upstairs room.
   1913 webster

[3] : WordNet (r) 2.0

upstairs
     adj : on or of upper floors of a building; "the upstairs maid";
           "an upstairs room" syn: upstair ant: downstairs
     adv 1: on a floor above; "they lived upstairs" syn: up the stairs,
             on a higher floor ant: downstairs
     2: with respect to the mind; "she's a bit weak upstairs" syn:
        in the head, in the mind
see also:
upstair downstairs up the stairs on a higher floor in the head in the mind 

[4] : Moby Thesaurus II by Grady Ward, 1.0

34 moby thesaurus words for "upstairs":
   above, abovestairs, airward, aloft, aloof, heavenward, high,
   high up, in the air, in the clouds, on high, on stilts,
   on the peak, on tiptoe, over, overhead, skyward, straight up,
   tiptoe, to the zenith, up, up attic, up north, up steps, upalong,
   uphill, uphillward, uplong, upstream, upstreamward, uptown, upward,
   upwards, upwith

Upstairs >> U Words
Upstairs, definition of term: Upstairs
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