Nouns

(n)upright, verticala vertical structural member as a post or stake“the ball sailed between the uprights”
(n)upright, upright pianoa piano with a vertical sounding board

Adjectives

(a)erect, vertical, uprightupright 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”
(s)upright, unslopedin a vertical position; not sloping“an upright post”
(s)good, just, uprightof moral excellence“a genuinely good person”, “a just cause”, “an upright and respectable man”