とうにゅうぐち 投入口 LinksSentence search for 投入口Sentence search for とうにゅうぐちSentence search for とうにゅうこうKanji details for 投, 入 and 口Edit in JMdict Noun1. insertion slot (e.g. coins, tickets); input portOther forms投入口 【とうにゅうこう】 Discussions Log in to talk about this word.