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

ビタミン剤[bitaminzai] vitamin pills
ビラン剤[biranzai] blister agent
育毛剤[ikumouzai] (hair) tonic
下剤[gezai] laxative
化学剤[kagakuzai] chemical agent

可塑剤[kasozai] plasticizer
解毒剤[gedokuzai] antidote
解熱剤[genetsuzai] fever medicine
滑沢剤[kattakuzai] lubricant
乾燥剤[kansouzai] drying agent

御猪口[ochoko] small cup
片口鰯[katakuchiiwashi] Japanese anchovy (Engraulis japonica)
白口[shiroguchi] white croaker (Pennahia argentata)
悪たれ口[akutareguchi] abuse
悪口雑言[akkouzougon] all kinds of malicious gossip

異口同音[ikudouon] in concert
異口同音に[ikudouonni] in one voice
ひと口[hitokuchi] mouthful
一口商い[hitokuchiakinai] an immediate definite deal
一口同音[ikkudouon] reading in unison

荒涼[kouryou] desolate
清涼[seiryou] cool
清涼飲料[seiryouinryou] cool drink
清涼飲料水[seiryouinryousui] soft drink
夕涼[yuusuzumi] evening cool

涼しい[suzushii] cool
涼む[suzumu] to cool oneself
涼気[ryouki] cool air
涼味[ryoumi] cool
涼風[ryoufuu] cool breeze

血清[kessei] serum
粛清[shukusei] (political) purge
真清水[mashimizu] pure water
清ます[sumasu] to clear
清む[sumu] to clear (e.g. weather)

清い[kiyoi] clear
清まる[kiyomaru] to be purified
清め[kiyome] purification
清める[kiyomeru] to purify
清らか[kiyoraka] clean