break off

US /breɪk ɔf/
UK /breɪk ɔf/
"break off" picture
1.

to separate something from a larger piece by force

:
He managed to break off a piece of the chocolate bar.
The branch broke off in the strong wind.
2.

to suddenly stop speaking or doing something

:
She broke off in mid-sentence.
The negotiations broke off without an agreement.
3.

to end a relationship or agreement suddenly

:
They decided to break off their engagement.
The two countries broke off diplomatic relations.