先代

N2 先頭 sentou head, lead, vanguard N2 祖先 sosen ancestor(s) N2 代名詞 daimeishi pronoun N2 真っ先 massaki foremost, beginning N3 代える kaeru substitute, replace N3 代る kawaru replace, take the place of, alternate N3 近代 kindai modern times, modern era N3 現代 gendai modern times, present age N3 先日 senjitsu the other day, a few days ago

N5 先 sen / saki, ma.zu before, ahead, previous N4 代 dai, tai / ka.waru, kawa.ru, kawa.ri, ka.wari, -gawa.ri, -ga.wari, ka.eru, yo, shiro substitute, change, convert