boil up

US /bɔɪl ʌp/

UK /bɔɪl ʌp/

1.

to become very angry or excited

:

•

His anger began to boil up when he heard the news.

•

Tensions are starting to boil up between the two groups.

:

flare up erupt simmer escalate intensify

2.

to cook something by boiling it, often until it is soft or reduced

:

•

You need to boil up the potatoes until they are tender.

•

Let's boil up some water for tea.

:

cook simmer stew

:

boil boiling point boil down hard-boiled soft-boiled boil down to boil over