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

外径[gaikei] outer diameter
径路[keiro] course
口径[koukei] aperture
捷径[shoukei] shortcut
鼡径[sokei] groin

鼡径部[sokeibu] groin
直情径行[chokujoukeikou] impulsive and straightforward
内径[naikei] bore
半径[hankei] radius