(nán, ㄋㄢˊ) difficult (to...); problem; difficulty; difficult; not good [CE-DICT]
(nàn, ㄋㄢˋ) disaster; distress; to scold [CE-DICT]
道
(どう) (n) (1) (abbr) road; (2) way; (3) Buddhist teachings; (4) Taoism; (5) modern administrative region of Japan (Hokkaido); (6) historical administrative region of Japan (Tokaido, Tosando, etc.); (7) province (Tang-era administrative region of China); (8) province (modern administrative region of Korea) [EDICT]
(みち) (n) (1) road; street; way; path; course; route; lane; (2) distance; ways (e.g. "a long ways"); (3) the way (of proper conduct, etc.); one's way; morals; (4) teachings (esp. Confucian or Buddhist); dogma; (5) field (of medicine, etc.); subject; (6) way; method; means; (P) [EDICT]
(ち;ぢ) (n) (1) (arch) (ち only) (See 路・じ) way; road; (n-suf) (2) (usu. ぢ) way to ...; road to ... [EDICT]
(dào, ㄉㄠˋ) direction; way; method; road; path; classifier for long thin stretches, rivers, roads etc; principle; truth; morality; reason; skill; method; Dao (of Daoism); to say; to speak; to talk [CE-DICT]
口
(く;こう) (n) (1) (く only) {Buddh} mouth; speech; (suf,ctr) (2) (usu. こう) counter for people or implements [EDICT]
(くち) (n) (1) mouth; (2) opening; hole; gap; orifice; (3) mouth (of a bottle); spout; nozzle; mouthpiece; (4) gate; door; entrance; exit; (5) (See 口を利く・1) speaking; speech; talk (i.e. gossip); (6) (See 口に合う) taste; palate; (7) mouth (to feed); (8) opening (i.e. vacancy); available position; (9) (See 口がかかる) invitation; summons; (10) kind; sort; type; (11) opening (i.e. beginning); (suf,ctr) (12) counter for mouthfuls, shares (of money), and swords; (P) [EDICT]
(kǒu, ㄎㄡˇ) mouth; (classifier for things with mouths such as people, domestic animals, cannons, wells etc) [CE-DICT]