0 Old HSK word(s):
茅塞顿开* *

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

茅 reeds, rushes, grass / surname
塞 stop up, block, seal, cork / pass, frontier / fortress
顿 pause, stop / bow, kowtow / arrange
开 open / initiate, begin, start
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual

Korean:
0 NHSK word(s):
KOREAN6000 word(s):
0 KOREAN 2500 New HSK words):
0 KOREAN Sentence(s):