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

奥御殿[okugoten] noble's private quarters
下殿[geden] leaving the palace
化粧殿[kewaiden] dressing room
権殿[gonden] temporary shrine (houses the object in which the deity resides when main shrine is under repairs)
貴殿[kiden] you (primarily used by men in letters to their male equals or superiors)

宮殿[kyuuden] palace
ご殿[goten] palace
皇太子殿下[koutaishidenka] the Crown Prince
参殿[sanden] palace visit
神殿[shinden] temple