カード会員[kaadokaiin] (credit) card holder
ユダヤ教会堂[yudayakyoukaidou] synagogue
委員会[iinkai] committee
医会[ikai] medical society
医師会[ishikai] medical association

井戸端会議[idobatakaigi] content-free chat
育英会[ikueikai] scholarship society
一期一会[ichigoichie] once-in-a-lifetime encounter (hence should be cherished as such)
一般会計[ippankaikei] general accounting and finance
一般社会[ippanshakai] general public

列記[rekki] list
一列[ichiretsu] (a) row
下り列車[kudariressha] trains going away from the capital
逆行列[gyakugyouretsu] inverse matrix
区間列車[kukanressha] local train

系列[keiretsu] series
系列化[keiretsuka] putting in order
後列[kouretsu] rear
行列[gyouretsu] line
行列式[gyouretsushiki] determinant

雨子[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
御菓子[okashi] confections
お子さん[okosan] (someone else's) child
お子様[okosama] child (someone else's)
山梔子[kuchinashi] Cape jasmine (Gardenia jasminoides)

させ子[saseko] whore
梃子摺る[tekozuru] to have much trouble
螺子回し[nejimawashi] screwdriver
硝子[garasu] glass
獅子女[sufinkusu] sphinx

一坪本社[hitotsubohonsha] small company headquarters located in Tokyo simply for name value
一般社会[ippanshakai] general public
印刷社[insatsusha] printing company
運送会社[unsougaisha] shipping company
映画社[eigasha] movie company

下請会社[shitaukegaisha] subcontractor
下層社会[kasoushakai] the underworld
下流社会[karyuushakai] lower classes
会社[kaisha] company
会社員[kaishain] company employee

一系[ikkei] single-family lineage
家系[kakei] family lineage
革新系[kakushinkei] liberal
共産系[kyousankei] communist controlled
銀行系カード[ginkoukeikaado] bank issued credit card

系図[keizu] family tree
系図学[keizugaku] genealogy (the study)
系統[keitou] system
系統樹[keitouju] genealogical tree