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

一弦琴[ichigenkin] single-stringed Japanese zither
琴線[kinsen] heartstrings
三角琴[sankakugoto] trigon (a musical instrument)
手風琴[tefuukin] accordion
心の琴線[kokoronokinsen] heartstrings

たて琴[tategoto] harp
風琴[fuukin] organ
木琴[mokkin] xylophone
提琴[teikin] tiqin (2 or 4-stringed Chinese instrument played with a bow)