JLPT N1 Vocabulary 公用 (kouyou) government business, public use, public expense JLPT N1 Learning Done Flashcards Recall mode Meaning 公用 (こうよう, kouyou) is a JLPT N1 vocabulary word meaning “government business, public use, public expense”. Kanji in this word 公 public 用 utilize ← Previous無念 All N1 vocabulary Next →意気込む