火燵掛布[kotatsugake] cover for kotatsu
引っ掛る[hikkakaru] to be caught in
引っ掛ける[hikkakeru] to hang (something) on (something)
押掛ける[oshikakeru] to intrude on
押掛け客[oshikakekyaku] uninvited guest

下掛る[shimogakaru] to talk about indecent things
下駄掛け[getagake] wearing wooden clogs
夏掛け[natsugake] summer-use futon
掛り[kakari] starting
掛かり合う[kakariau] to have dealings with

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