* Interruption: This refers to the act of stopping something or being stopped.
* Pause: This implies a temporary stoppage, often for rest or a change of activity.
* Disruption: This suggests a sudden and often unwelcome interruption that disrupts normal flow.
* Fracture: This refers to a physical break or separation.
* Separation: This implies a complete break or division between two things.
You'll need to consider the specific situation and the meaning of "break" in that context to determine the most appropriate abstract noun.