危篤[kitoku] critical illness
篤い[atsui] thick
懇篤[kontoku] cordial
重篤[juutoku] serious (illness)
篤学[tokugaku] love of learning

篤行[tokkou] virtuous conduct
篤志家[tokushika] volunteer
篤農家[tokunouka] exemplary farmer
篤実[tokujitsu] sincerity
篤信[tokushin] devoutness

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"