godan verb (-tsu), intransitive verb
boil vigorously; seethe
Describes liquid boiling strongly with rising bubbles, often used for water, soup, or hot springs.
鍋の湯が沸き立っている。
The water in the pot is boiling vigorously.
godan verb (-tsu), intransitive verb
be excited; be stirred up
Metaphorical use for emotions or a crowd becoming lively and animated, like bubbling up.
勝利の知らせに会場が沸き立った。
The venue erupted with excitement at the news of victory.