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

一陣[ichijin] gust of wind
円陣[enjin] forming a circle
共産陣営[kyousanjinei] the Communist camp
軍陣[gunjin] camp
軍陣医学[gunjinigaku] military medicine

経営陣[keieijin] the management ranks
堅陣[kenjin] stronghold
殺陣[tate] sword battle (staged for television, etc.)
主陣地[shujinchi] main battle area
出陣[shutsujin] departure for the front