千せん歳ざいTop 20000MeaningsNoun1. thousand years; millennium; perpetuity; eternityOther spellings千せん載ざい1%Kanji used千thousand歳years oldKanji in other spellings載appear in printPitch accentせんざいUsed in vocabulary千せん載ざい一いち遇ぐうonce-in-a-lifetime (opportunity); golden (opportunity); one-in-a-million (chance)No-adjective