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

火縄銃[hinawajuu] matchlock
機関銃[kikanjuu] machine gun
軽機関銃[keikikanjuu] light machine gun
拳銃[kenjuu] pistol
元込め銃[motogomejuu] breechloader

叉銃[sajuu] stacked arms
催涙銃[sairuijuu] tear-gas gun
霰弾銃[sandanjuu] shotgun
自動小銃[jidoushoujuu] automatic rifle
重機関銃[juukikanjuu] heavy machine gun