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

この外[konohoka] besides
その外[sonota] etc.
ピントが外れる[pintogahazureru] to be out of focus
案外[angai] unexpectedly
もっての外[mottenohoka] absurd

以外[igai] with the exception of
意外[igai] unexpected
意想外[isougai] unexpected
域外[ikigai] outside the area
員外[ingai] non-membership

シーソー遊び[shiisooasobi] seesaw (game)
悪遊び[waruasobi] prank
園遊会[enyuukai] garden party
宴遊[enyuu] drinking party hall
火遊び[hiasobi] playing with fire

回遊[kaiyuu] excursion
外遊[gaiyuu] foreign travel
旧遊の地[kyuuyuunochi] familiar haunts
吟遊詩人[ginyuushijin] troubadour
空中浮遊[kuuchuufuyuu] levitation