桂けい月げつけいげつMeanings1nounmoonarchaicArchaic poetic term for the moon, associated with classical literature and the lunar calendar. Not used in modern everyday speech.桂けい月げつは古ふるい和わ歌かや漢かん詩しに詠よまれることが多おおい。The term 桂月 is often used in old waka and Chinese-style poetry.