御帰りなさい[okaerinasai] welcome home
烏有に帰する[uyuunikisuru] to be reduced to ashes
回帰[kaiki] return (to)
回帰線[kaikisen] the tropics (Cancer and Capricorn)
回帰的[kaikiteki] recursive

帰す[kaesu] to send (someone) back
帰り[kaeri] return
帰り路[kaerimichi] the way back or home
帰る[kaeru] to return
帰依[kie] devotion

お生憎様[oainikusama] that's too bad (ironical)
御誕生日おめでとうございます[otanjoubiomedetougozaimasu] Happy Birthday
隣の芝生は青い[tonarinoshibafuhaaoi] the grass is always greener on the other side
生きがいい[ikigaii] fresh (e.g. fish)
コンピューター援用生産[konpyuutaaenyouseisan] computer-aided manufacture

委託生[itakusei] scholarship student sent by government office or business
生す[nasu] to build up
異常発生[ijouhassei] plague
医学生[igakusei] medical student
医学生物学[igakuseibutsugaku] medical biology