Vocabulary What does 十八 (じゅうはち, juuhachi) mean? 十八 (じゅうはち, juuhachi) means eighteen; 18. Quick factsReadingじゅうはちRomajijuuhachiPart of speechnumeric 十八じゅうはちjuuhachieighteen; 181numeric eighteen; 18Also written: １８、一八Kanji in this word十ten; the number 10八eight; the number 8
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