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

に当たって[niatatte] at the time of (ind. opportunity or situation where something should be done)
一騎当千[ikkitousen] being a match for a thousand
一指当たり[ichiyubiatari] span
一人当たり[hitoriatari] per person
一人当て[hitoriate] per person

引当[hikiate] mortgage
引当金[hikiatekin] reserves
押し当てる[oshiateru] to push (something) against
穏当[ontou] proper
過当[katou] excessive

お待ち遠さま[omachidoosama] I'm sorry to have kept you waiting
ハッブル望遠鏡[habburubouenkyou] Hubble telescope
以遠[ien] beyond
迂遠[uen] roundabout
永遠[eien] eternity

縁遠い[endooi] unconnected
遠い[tooi] far
遠からず[tookarazu] soon
遠く[tooku] far away

雖も[iedomo] even though

中らずと雖も遠からず[atarazutoiedomotookarazu] not exactly correct, but pretty close to it