艰 ⇒
艰难 jiānnán, [艱難], difficult/hard/challenging
艰苦 jiānkǔ, [艱苦], difficult/hard/arduous
艰辛 jiānxīn, [艱辛], hardships/arduous/difficult
艰巨 jiānjù, [艱巨], arduous/terrible (task)/very difficult/formidable
艰险 jiānxiǎn, [艱險], difficult and dangerous/hardships and perils
举步维艰 jǔbùwéijiān, [舉步維艱], to make progress only with great difficulty (idiom)
艰 jiān, [艱], difficult/hard/hardship
历尽艰辛 艰难险阻 jiānnánxiǎnzǔ, [艱難險阻], untold dangers and difficulties (idiom)
艰苦卓绝 艰苦奋斗 jiānkǔfèndòu, [艱苦奮鬥], to struggle arduously
步履艰难 步履维艰 bùlǚwéijiān, [步履維艱], to have difficulty walking (idiom)/to walk with difficulty
艰难曲折