一般生活[ippanseikatsu] everyday life
隠退生活[intaiseikatsu] secluded life
火山活動[kazankatsudou] volcanic activity
快活[kaikatsu] cheerful
活火山[kakkazan] active volcano

活気[kakki] energy
活況[kakkyou] activity
活劇[katsugeki] action picture
活字[katsuji] printing type
活字体[katsujitai] printed form (of writing)

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

一進一退[isshinittai] now advancing and now retreating
引退[intai] retire
隠退[intai] retirement
隠退生活[intaiseikatsu] secluded life
遠退く[toonoku] to become distant

遠退ける[toonokeru] to keep (someone) at a distance
押し退ける[oshinokeru] to push aside
撃退[gekitai] repulse
減退[gentai] decline
後退[koutai] retreat

隠しカメラ[kakushikamera] hidden camera
隠し引き出し[kakushihikidashi] secret withdrawal
隠し芸[kakushigei] hidden talent
隠し撮り[kakushidori] taking pictures secretly
隠し子[kakushigo] illegitimate child

隠し事[kakushigoto] secret
隠し場所[kakushibasho] cache
隠し食い[kakushigui] eating on the sly
隠し立て[kakushidate] secrecy
隠くす[kakusu] to hide