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

今宵[koyoi] this evening
春宵[shunshou] spring evening
宵の口[yoinokuchi] nightfall
宵越し[yoigoshi] (kept) overnight
徹宵[tesshou] all night

半宵[hanshou] midnight
宵宮[yomiya] eve of a festival vigil
宵っ張り[yoippari] night owl
宵積み[yoizumi] goods loaded in the afternoon for delivery the following morning