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

塞爾維[serubia] Serbia
梗塞[kousoku] stoppage
塞栓[sokusen] embolus
充塞[juusoku] plug
人間万事塞翁が馬[jinkanbanjisaiougauma] inscrutable are the ways of heaven

腸閉塞[chouheisoku] intestinal obstruction
脳硬塞[noukousoku] stroke (blocked blood vessel in brain)
八方塞がり[happoufusagari] all doors closed
閉塞[heisoku] closure
要塞[yousai] fort