3 Old HSK word(s): ☊尖锐 ** B ☊锐利 ** D ☊敏锐 ** D
精锐* * 锐* * 养精蓄锐* *

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

养 raise, rear, bring up / support
精 essence / semen / spirit
蓄 store, save, hoard, gather
锐 sharp, keen, acute, pointed
Hsk Characters: 锐 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
锐 9510 + 銳 + + sharp, keen, acute, pointed 金,钅 兑 Gold (Metal) 兑 (UMTAUSCHEN) rui4 +

Korean:

銳 + 锐 날카로울 예 (sharp)
鈗 + 锐 병기윤
2 NHSK word(s): 尖锐* 5 jian1 rui4sharp/ intense/ penetrating/ pointed/ acute (illness) 敏锐* 6 min3 rui4keen/ sharp/ acute
KOREAN6000 word(s):
0 KOREAN 2500 New HSK words):
0 KOREAN Sentence(s):