Vocabulary What does 7日 (なのか, nanoka) mean? 7日 (なのか, nanoka) means 7th day of the month. Quick factsReadingなのかRomajinanokaPart of speechnoun 7日なのかnanoka7th day of the month1noun 7th day of the month2noun seven daysAlso written: 七日Kanji in this word日day; sun