0 Old HSK word(s):
嘹亮/喨* *

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

嘹 used describe clarity of voice / resonant
亮 bright, brilliant, radiant, light

Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual