Word四しsiMeaningfoursPart of speechnumeralPronunciationCourseJapaneseLessonNumbers up to 10Usages of si二に百ひゃく 七なな十じゅう 四しnihyaku nanazyuu si274四し月がつsigatuAprilElon.io is an online learning platformWe have hundreds of Japanese lessons and thousands of exercises.Start learning Japanese now