rupture
US /ˈrʌp.tʃɚ/
UK /ˈrʌp.tʃɚ/

1.
2.
a breach or interruption of a friendly relationship or situation
:
•
The disagreement led to a complete rupture in their friendship.
•
There was a sudden rupture in diplomatic relations.
a breach or interruption of a friendly relationship or situation