0 Old HSK word(s):
改弦易辙* *

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

改 change, alter / improve, remodel
弦 string / hypotenuse, crescent
易 change / easy
辙 wagon ruts, wheel tracks
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual