boil up

US /bɔɪl ʌp/
UK /bɔɪl ʌp/
"boil up" picture
1.

monter, bouillir

to become very angry or excited

:
His anger began to boil up when he heard the news.
Sa colère a commencé à monter quand il a appris la nouvelle.
Tensions are starting to boil up between the two groups.
Les tensions commencent à monter entre les deux groupes.
2.

faire bouillir, bouillir

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

:
You need to boil up the potatoes until they are tender.
Vous devez faire bouillir les pommes de terre jusqu'à ce qu'elles soient tendres.
Let's boil up some water for tea.
Faisons bouillir de l'eau pour le thé.