沸き返る わきかえる to boil up #28,545 Meanings also 沸きかえる godan verb, intransitive to boil up; to seethe to get excited; to be in an uproar Its kanji 沸 フツ · わ.く、わ.かす seethe, boil, ferment, uproar, breed 返 ヘン · かえ.す、-かえ.す、かえ.る、-かえ.る return, answer, fade, repay