奥さん[okusan] wife
奥さん孝行[okusankoukou] devoted to one's wife
奥の院[okunoin] inner sanctuary
奥の間[okunoma] inner room
奥の手[okunote] left hand

奥まって[okumatte] secluded
奥まる[okumaru] to lie deep in
奥意[okui] true intention
奥印[okuin] official seal

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"