Word日にっ光こうnikkouMeaningsunlightPart of speechnounPronunciationCourseJapaneseLessonVocabulary expansion 37Breakdown of nikkousun; day日sunlight光Sunlight can already be dangerous in small amounts when you're bald.Usages of nikkou猫ねこ は 窓まど で 日にっ光こう を 浴あびる。neko ha mado de nikkou wo abiru.The cat basks in the sunlight by the window.