WordNet sense 1 (a piano with a vertical sounding board):

upright piano

WordNet sense 2 (of moral excellence):

good, just

WordNet sense 3 (characterized by or proceeding from accepted standards of morality or justice):

righteous

WordNet sense 4 (erect in posture):

straight

WordNet sense 5 (requiring a standing position):

stand-up

WordNet sense 6 (having a supporting base):

standing

WordNet sense 7 (upright in position or posture):

erect

WordNet sense 8 (in a vertical position; not sloping):

unsloped

WordNet sense 9 (at right angles to the plane of the horizon or a base line):

perpendicular, vertical