12 Old HSK word(s): ☊急 ** A ☊着急 ** A ☊急忙 ** B ☊紧急 ** C ☊焦急 ** C ☊急躁 ** C ☊加急 ** D ☊急剧 ** D ☊急切 ** D ☊急需 ** D ☊急于 ** D ☊危急 ** D
操之过急* * 当务之急* * 干着急* * 告急* * 过急* * 缓急* * 火急* * 救急* * 轻重缓急* * 燃眉之急* * 惹急* * 特急* * 湍急* * 性急* * 心急* * 应急* *

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

应 should, ought to, must
急 quick, quickly / urgent, pressing

Hsk Characters: 急 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
急 6025 + 急 + + quick, quickly / urgent, pressing 心， 忄 急 Heart 急 (DRINGEND) ji2 +

Korean:

急 + 急 급할 급.Fast.In a hurry.
10 NHSK word(s): 着急* 3 zhao2 ji2to worry/ to feel anxious 紧急* 5 jin3 ji2urgent/ emergency 急忙* 5 ji2 mang2hastily 焦急* 6 jiao1 ji2anxiety/ anxious 急功近利* 6 ji2 gong1 jin4 li4seeking instant benefit (idiom)/ shortsighted vision; looking only for fast return 急剧* 6 ji2 ju4rapid/ sudden 急切* 6 ji2 qie4eager/ impatient 急于求成* 6 ji2 yu2 qiu2 cheng2anxious for quick results (idiom)/ to demand instant success/ impatient for result/ impetuous 急躁* 6 ji2 zao4irritable/ irascible/ impetuous 当务之急* 6 dang1 wu4 zhi1 ji2top priority job/ matter of vital importance
KOREAN6000 word(s):
3 KOREAN 2500 New HSK words):
急忙 + jímáng 급히. 황급히. 바삐. geubhi. hwang-geubhi. bappi.
紧急 + jǐnjí 긴급하다. 절박하다. 긴박하다. gingeubhada. jeolbaghada. ginbaghada.
急诊 + jízhěn 응급 진료. 급진. eung-geub jinlyo. geubjin.
2 KOREAN Sentence(s):
我赶时间。 / 急着哪！ + 저는 바빠요. jeoneun bappayo.
您不着急啊！ + 여유있게 하세요! yeoyuitke haseyo!