(bound form) refers to the falling or entering tones in traditional Chinese poetry, known as 仄声 zè​shēng, which contrast with the level tone or 平 píng; see 平仄 píng​zè

(bound form) to tilt or slant; to be inclined; used to describe the sun past its meridian

(bound form) narrow; cramped; small in space; synonymous with 窄 zhǎi in compound words like 逼仄 bī​zè

(bound form) uneasy; feeling apologetic or ashamed, as in 歉仄 qiàn​zè