沸く

わくwaku

godan verb · intransitive

1. to grow hot (e.g. water)
2. to boil
3. to get excited (at)
4. to erupt (in applause, cheering, etc.)
5. to be in a ferment
6. to take place energetically
7. to ferment
8. to melt (of metal)

Study it in Yanamino