Senses
坌 dust
(bound form) dust; fine powder; to fall like dust or powder upon something
坌 to gather
(bound form) to gather together; to collect; to accumulate
坌 to dig
to dig; to plow; to turn up soil
坌 stupid
(literary) stupid; foolish; clumsy; same as 笨
坌 coarse
(literary) coarse; rough; heavy; (of labor) manual or unskilled; same as 笨