What does 公用 mean?
公用 is a Japanese noun meaning “government business, public use, public expense” in English. It is written as 公用 in kanji, こうよう in hiragana, and kouyou in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
彼は公用で大阪に行った。
He went to Osaka on official business.