沸く わく to grow hot (e.g. water); to boil v5k vi to get excited (at); to erupt (in applause, cheering, etc.); to be in a ferment; to take place energetically v5k vi to ferment v5k vi to melt (of metal) v5k vi Beginner ➥
沸騰 ふっとう boiling; seething n vs becoming heated (e.g. debate); excitement; agitation; fermentation n vs soaring (prices); shooting up n vs Intermediate II ➥