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

於多福[otafuku] homely woman (esp. one with a small low nose, high flat forehead, and bulging cheeks)
圧倒的多数[attoutekitasuu] overwhelming numbers
一妻多夫[issaitafu] polyandry
一番多い[ichibanooi] most numerous
一夫多妻[ipputasai] polygamy

引く手数多[hikuteamata] being very popular
過多[kata] excess
幾多[ikuta] many
ご多忙中[gotabouchuu] in the midst of your work (often used as a formal phrase in business letters, etc.)
好事魔多し[koujimaooshi] Lights are usually followed by shadows

可能選択[kanousentaku] available choice
改選[kaisen] re-election
厳選[gensen] careful selection
互選[gosen] mutual election
公選[kousen] public election

再選[saisen] re-election
再選挙[saisenkyo] re-election
三選[sansen] third-term election
市長選[shichousen] mayoral election
自選[jisen] (author) selection