行けない[ikenai] wrong
行る[yaru] to send
オリエント急行[orientokyuukou] Orient express
カ行[kagyou] classification for Japanese verb with the dictionary form ending in "ku"
ガ行[gagyou] classification for Japanese verb with the dictionary form ending in "gu"

サ行[sagyou] classification for Japanese verb with the dictionary form ending in "su"
ザ行[zagyou] classification for Japanese verb with the dictionary form ending in "zu"
スパイ行為[supaikoui] espionage
タ行[tagyou] classification for Japanese verb with the dictionary form ending in "tsu"
ダ行[dagyou] classification for Japanese verb with the dictionary form ending in "dzu"

跆拳道[tekondoo] Tae Kwon Do
テレビ報道[terebihoudou] television report
悪の道へ誘う[akunomichiheizanau] to lead astray
悪虐無道[akugyakubudou] treacherous
悪道[akudou] wrong course

医事伝道[ijidendou] medical missionary work
医道[idou] the art of medicine
医療伝道[iryoudendou] medical missionary work
一筋道[hitosujimichi] straight road
一道[ichidou] one road

し難い[shinikui] hard to do
一難[ichinan] one difficulty
火難[kanan] fire calamity
海難[kainan] shipwreck
患難[kannan] affliction

危難[kinan] peril
及び難い[oyobigatai] hard to attain to
救難[kyuunan] rescue
救難ヘリコプター[kyuunanherikoputaa] rescue helicopter
苦難[kunan] suffering