13 Old HSK word(s): ☊凉快 ** A ☊痛快 ** A ☊愉快 ** A ☊快 ** A ☊快乐 ** B ☊赶快 ** B ☊快餐 ** C ☊快活 ** C ☊飞快 ** C ☊快速 ** D ☊轻快 ** D ☊尽快 ** D ☊爽快 ** D


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

爽 happy, cheerful / refreshing
快 rapid, quick, speedy, fast / soon

Hsk Characters: 快 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
快 5FEB + 快 + + rapid, quick, speedy, fast / soon 心， 忄 快 Heart 快 (DURCHBRUCH) kuai4 +

Korean:

快 + 快 쾌할쾌 (쾌하다: exaltation, great joy)
NHSK word(s):
KOREAN6000 word(s):
KOREAN 2500 New HSK words):
KOREAN Sentence(s):