0 Old HSK word(s):
一而再,再而三* *

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

一 one / a, an / alone
而 and / and then / and yet / but
再 again, twice, re-

Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual