Vocabulary What does もちろん (mochiron) mean? もちろん means of course, certainly. Quick factsReadingもちろんRomajimochironLevel (estimated, JLPT framework)N4 もちろんもちろんN4 · estimated, JLPT frameworkmochironof course, certainlyGenkiGenki 7Example sentencesもちろん、私(わたし)も行(い)きます。Of course, I'll go too.彼(かれ)はもちろん日本(にほん)語(ご)が話(はな)せます。Of course he can speak Japanese.