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

教授[kyouju] professor
個人教授[kojinkyouju] private instruction
交換教授[koukankyouju] exchange professor
口授[kuuju] oral instruction or teaching or method
授かる[sazukaru] to be awarded (e.g. a prize)

授ける[sazukeru] to grant
授業[jugyou] lesson
授業を受ける[jugyouwoukeru] to take a class
授業料[jugyouryou] tuition fee
授爵[jushaku] elevation to peerage