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

暗中模索[anchuumosaku] groping in the dark
花模様[hanamoyou] floral pattern
規模[kibo] scale
規模の経済[kibonokeizai] economies of scale
空模様[soramoyou] look of the sky

国際規模[kokusaikibo] international scale
市場規模[shijoukibo] market scale
小規模[shoukibo] small scale
小規模ビジネス[shoukibobijinesu] small business
人体模型[jintaimokei] anatomical model of the human body

円規[enki] pair of compasses
価格規制[kakakukisei] price control
会員規約[kaiinkiyaku] membership agreement (e.g. for a credit card)
会規[kaiki] society by-laws
回線制御規則[kaisenseigyokisoku] line discipline

規格[kikaku] standard
規格化[kikakuka] standardization
規格原案[kikakugenan] standards draft
規準化[kijunka] normalization
規制[kisei] regulation