to boil; to seethe; to roil (e.g. waterfall, torrent); to foam; to well up (of emotions); to overflow (e.g. fighting spirit)
to boil; to be boiling hot; to be on a rolling boil
to be ardent (of passion, zeal, etc.); to be aflame
to bring to a boil; to make seethe; to stir up (emotions); to fire up; to make surge
to boil; to bring to a boil