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

阿吽の呼吸[aunnokokyuu] the harmonizing, mentally and physically, of two parties engaged in an activity
ちゅうちゅう吸う[chuuchuusuu] to suck
化学吸着[kagakukyuuchaku] chemisorb
吸いこむ[suikomu] to inhale
吸いとる[suitoru] to suck up

吸付く[suitsuku] to stick to
吸う[suu] to smoke
吸引[kyuuin] absorption
吸気[kyuuki] inspiration
吸金剛[kokongou] Hevajra