22 Old HSK word(s): ☊困难 ** A ☊难 ** A ☊难看 ** B ☊难受 ** B ☊难道 ** B ☊难过 ** B ☊难题 ** C ☊难以 ** C ☊灾难 ** C ☊艰难 ** C ☊出难题 ** C ☊为难 ** C ☊难得 ** C ☊难怪 ** C ☊难堪 ** D ☊难免 ** D ☊难 ** D ☊难民 ** D ☊疑难 ** D ☊苦难 ** D ☊难度 ** D ☊难关 ** D
百般刁难* * 避难* * 大难* * 刁难* * 多灾多难* * 发难* * 非难* * 赴难* * 国难* * 海难* * 患难* * 进退两难* * 空难* * 老大难* * 两头为难* * 罹难* * 留难* * 落难* * 蒙难* * 磨/魔难* * 排除万难* * 排忧解难* * 受难* * 死难* * 逃难* * 危难* * 畏难* * 幸免于难* * 殉/徇难* * 遇难* * 遭难* * 责难* * 左右为难* *

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

左 left / east / unorthodox, improper
右 right / west / right-wing
为 do, handle, govern, act / be
难 difficult, arduous, hard / unable
Hsk Characters: 难 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
难 96BE + 難 + + difficult, arduous, hard / unable 隹 难 Bird2 难 (SCHWIERIG) 【◎Fix:◎nan2;◎nan4】 +

Korean:

難 + 难 어려울 난 (어렵다: difficult)
14 NHSK word(s): 难* 3 nan2difficult (to...)/ problem/ difficulty/ difficult/ not good 难过* 3 nan2 guo4feel sorry/ be grieved 难道* 4 nan2 dao4don't tell me .../ could it be that...? 难受* 4 nan2 shou4to feel unwell/ to suffer pain/ to be difficult to bear 困难* 4 kun4 nan5(financial etc) difficulty/ problem/ issue/ CL:個|个[ge4] 难怪* 5 nan2 guai4(it's) no wonder (that...)/ (it's) not surprising (that) 难看* 5 nan2 kan4ugly/ unsightly 艰难* 6 jian1 nan2difficult/ hard/ challenging 难得* 6 nan2 de2seldom/ rare/ hard to come by 难堪* 6 nan2 kan1hard to take/ embarrassed 难免* 6 nan2 mian3hard to avoid/ difficult to escape from 难能可贵* 6 nan2 neng2 ke3 gui4rare and commendable/ estimable 灾难* 6 zai1 nan4disaster/ catastrophe 为难* 6 wei2 nan2feel embarrassed or awkward/ to make things difficult (for someone)/ to find things difficult (to do or manage)
KOREAN6000 word(s):
5 KOREAN 2500 New HSK words):
难怪 + nánguài 어쩐지. 과연. 그러기에. eojjeonji. gwayeon. geuleogie.
难免 + nánmiǎn 면하기 어렵다. 피하기 어렵다. ...하게 마련이다. myeonhagi eolyeobda. pihagi eolyeobda. ...hage malyeon-ida.
困难 + kùnnan 빈곤. 곤란. 애로. 어려움. bingon. gonlan. aelo. eolyeoum.
难道 + nándào 설마 ...란 말인가? 설마 ...하겠는가? 설마 ...이겠어요? 설마 ...는 아니겠지요... seolma ...lan mal-inga? seolma ...hagessneunga? seolma ...igess-eoyo? seolma ...neun anigessjiyo...
难受 + nánshòu (몸이) 불편하다. 견딜(참을) 수 없다. 괴롭다. (mom-i) bulpyeonhada. gyeondil(cham-eul) su eobsda. goelobda.
2 KOREAN Sentence(s):
但是说和写就难了。 + 하지만 말하기와 쓰기는 어려워요. hajiman marhagiwah sseugineun eoryeowoyo.
这只蜘蛛是难看的。 + 거미는 못생겼어요. keomineun mossaenggyeosseoyo.