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

火燵掛布[kotatsugake] cover for kotatsu
火燵布団[kotatsubuton] cover for kotatsu
引火[inka] catching fire
引火温度[inkaondo] flash temperature
引火点[inkaten] flash point

曳火弾[eikadan] tracer bullet
煙火[enka] smoke and fumes (e.g. from cooking)
遠火[toobi] distant fire
下火[shitabi] burning low
下火になる[shitabininaru] to be under control

芥箱[gomibako] garbage can
げた箱[getabako] shoe rack (in genkan)
化粧箱[keshoubako] vanity case
救急箱[kyuukyuubako] first-aid kit
仕事箱[shigotobako] workbox

私書箱[shishobako] post office box
慈善箱[jizenbako] charity box
主の箱[shunohako] Ark of the Lord
手箱[tebako] (small) box to keep valuables, etc.
重箱[juubako] multi-tiered food box