Used in patterns with 西 xī to describe moving in different directions, acting in a scattered way, or doing something haphazardly.

to shake, rock, or wave; to move back and forth or to make something move back and forth

(bound form) used in tandem with 东 dōng to indicate various places, directions, or a lack of order

to sway; to wave; to move to and fro; to oscillate