０歳ぜろさいMeaningsNoun1. under 1 year old (of a baby); 0 years oldOther spellings０才ぜろさい〇歳ぜろさいUsage share unknownOther readings０歳れいさい０才れいさい〇歳れいさいKanji used歳years oldKanji in other spellings才talent