0 Old HSK word(s):
老规矩* *

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

老 old, aged / experienced
规 rules, regulations, customs, law
矩 carpenter's square, ruler, rule

Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual