0 Old HSK word(s):
豁然贯通* *

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

豁 open up, clear / exempt
然 yes, certainly / pledge, promise
贯 a string of 1000 coins / to go through
通 pass through, common, communicate
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual