1 Old HSK word(s): ☊凹 ** D
洼/凹* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

洼 hollow / pit / depression / swamp
凹 concave, hollow, depressed / a pass, valley

Hsk Characters: 凹 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
凹 51F9 + 凹 + + concave, hollow, depressed / a pass, valley 凵 凹 Pit 凹 (KONKAV) ao1 +

Korean:

凹 + 凹 오목할요
1 NHSK word(s): 凹凸* 6 ao1 tu1bumpy/ uneven/ slotted and tabbed joint/ crenelation
KOREAN6000 word(s):
0 KOREAN 2500 New HSK words):
0 KOREAN Sentence(s):