What does 行為 mean?
行為 is a Japanese noun meaning “act, deed, conduct” in English. It is written as 行為 in kanji, こうい in hiragana, and koui in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
彼は自分の行為を正当化しようとしている。
He is trying to justify his act.