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

インスタント食品[insutantoshokuhin] instant foods
コンシューマ向け製品[konshuumamukeseihin] consumer products
コンシューマ製品[konshuumaseihin] consumer goods
スキー用品[sukiiyouhin] ski outfit
レトルト食品[retorutoshokuhin] packed and sterilised food

遺品[ihin] articles of the deceased
遺留品[iryuuhin] lost articles
医薬品[iyakuhin] medical supplies
医療品[iryouhin] medical supplies
一品[ippin] item

ミドル級[midorukyuu] middleweight class
一級[ikkyuu] one grade
下級[kakyuu] lower grade
下級職[kakyuushoku] subordinate post
下級審[kakyuushin] lower court

下級生[kakyuusei] underclassmen
下層階級[kasoukaikyuu] proletariat
仮進級[karishinkyuu] conditional promotion
階級[kaikyuu] (social) class
階級章[kaikyuushou] rank insignia