• (of a person) sitting or standing with the back straight

Synonyms: upright, erect, vertical, plumb, upended, on end, rearing, straight (up and down), perpendicular

• strictly honourable or honest

Synonyms: honest, honourable, upstanding, respectable, reputable, high-minded, law-abiding, right-minded, worthy, moral, ethical, righteous, decent, good, virtuous, principled, high-principled, of principle, proper, correct, just, noble, incorruptible, anti-corruption, conscientious

• in or into an upright position

• a post or rod fixed vertically, especially as a structural support

Synonyms: column, standard, stanchion, post, pole

• an upright piano