御中[onaka] stomach
御話中[ohanashichuu] busy (phone)
アル中[aruchuu] alcoholism
π中間子[paichuukanshi] pi meson
暗中[anchuu] in the dark

暗中摸索[anchuumosaku] groping in the dark
意中[ichuu] one's mind
意中の女[ichuunoonna] sweetheart
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一日中[ichinichijuu] all day long

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

カード会員[kaadokaiin] (credit) card holder
サボタージュ員[sabotaajuin] saboteur
パートタイム従業員[paatotaimujuugyouin] part time employee
フルタイム従業員[furutaimujuugyouin] full-time employee
委員[iin] committee member

委員会[iinkai] committee
委員長[iinchou] committee chairman
医員[iin] medical staff
一員[ichiin] person

共産党中央委員会[kyousantouchuuouiinkai] Central Committee of the Communist Party
震央[shinou] epicentre (of an earthquake)
中央[chuuou] centre
中央アジア[chuuouajia] central Asia
中央委員会[chuuouiinkai] central committee

中央計画[chuuoukeikaku] centralized planning
中央口[chuuouguchi] central entrance
中央集権[chuuoushuuken] centralized authoritarian rule
中央集権化[chuuoushuukenka] centralization of power
中央処理装置[chuuoushorisouchi] central processing unit

委ねる[yudaneru] to entrust (a matter) to
委員[iin] committee member
委員会[iinkai] committee
委員長[iinchou] committee chairman
委曲[ikyoku] details

委細[isai] details
委細面談[isaimendan] details when I see you
委託[itaku] consign (goods (for sale) to a firm)
委託生[itakusei] scholarship student sent by government office or business
委任[inin] charge