まぐち 間口 Common word LinksSentence search for 間口Sentence search for まぐちKanji details for 間 and 口Edit in JMdict Noun1. frontage; width (of a building, plot of land, etc.)まぐち間口もひろ広いがおくゆ奥行きもどうよう同様にふか深い。It's as deep as it is wide.2. breadth (e.g. of one's knowledge); scope (e.g. of one's work); range Discussions Log in to talk about this word.