(bound form) an obstacle; a physical barrier or screen used to block or shelter something from wind or sight

(bound form) a defect or malfunction, as in 故障 gù​zhàng

(bound form) to protect or defend, as in 保障 bǎo​zhàng

(bound form) to block; to hinder; to cover from view; specifically to obstruct or shield one's vision

(literary) a small fort or defensive wall built at a strategic point on the border