ポリシーに固執[porishiinikoshitsu] adherence to a policy
愛執[aishuu] attachment
我執[gashuu] egotism
確執[kakushitsu] discord
執り行う[toriokonau] to hold a ceremony

執権[shikken] regent to the shogunate
執行[shikkou] execution
執行猶予[shikkouyuuyo] stay of execution
執事[shitsuji] steward
執心[shuushin] 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