CharacterPop
Characters
Stories
Collections
Radicals
Sounds
Tools
Log in
Sign up
凹
ㄠ
āo
凸
ㄊㄨ
tū
concave or convex
bumps and holes
uneven (surface)
rugged
See all character breakdowns when you
upgrade
to a
PRO
account.
凹
ㄠ
āo
a depression
凸
ㄊㄨ
tū
convex