Vocabulary What does ４日 (よっか, yokka) mean? ４日 (よっか, yokka) means 4th day of the month. Quick factsReadingよっかRomajiyokkaPart of speechnoun ４日よっかyokka4th day of the month1noun 4th day of the month2noun four daysAlso written: 四日Kanji in this word日day; sun
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