皓こう月げつこうげつMeanings1nounbright white moonarchaicArchaic literary term for a clear, luminous moon. Not used in modern everyday Japanese; encountered mainly in classical poetry or historical texts.古こ典てんの和わ歌かには「皓こう月げつ」という言こと葉ばがよく見みられる。The word 皓月 is often seen in classical waka poetry.