simply; really

straight; to straighten; fair and reasonable; frank; straightforward; (indicates continuing motion or action); vertical; vertical downward stroke in Chinese characters

surname Zhi; Zhi (c. 2000 BC), fifth of the legendary Flame Emperors 炎帝[Yan2 di4] descended from Shennong 神農|神农[Shen2 nong2] Farmer God

upright; upstanding; honest

perpendicular; vertical