upright in WordNet English dictionary

1. upright in position or posture
   "an erect stature"; "erect flower stalks"; "for a dog, an erect tail indicates aggression"; "a column still vertical amid the ruins"; "he sat bolt upright"
   erect  vertical  upright 
   
2. of moral excellence
   "a genuinely good person"; "a just cause"; "an upright and respectable man"
   good  just  upright 
   
3. in a vertical position; not sloping
   "an upright post"
   upright  unsloped 
   

1. a piano with a vertical sounding board
   upright  upright piano 
   
2. a vertical structural member as a post or stake
   "the ball sailed between the uprights"
   upright  vertical