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

介在[kaizai] mediation
観自在[kanjizai] Avalokitesvara (bodhisattva)
近在[kinzai] neighboring villages
健在[kenzai] in good health
県庁所在地[kenchoushozaichi] prefectural capital

顕在[kenzai] actual (as opposed to hidden or obscured)
現在[genzai] now
現在の所[genzainotokoro] at the present time
現在地[genzaichi] present location
現地駐在員[genchichuuzaiin] local resident

延滞[entai] arrears
凝滞[gyoutai] delay
渋滞[juutai] congestion (e.g. traffic)
滞り[todokoori] stagnation
滞る[todokooru] to stagnate

滞在[taizai] stay
滞納[tainou] non-payment
滞納者[tainousha] non-payer
遅滞[chitai] delay
沈滞[chintai] stagnation