n.
  - an act of breaking a law, agreement, or code of conduct. ▸a break in relations. 
- a gap in a wall or barrier, especially one made by an attacking army.
v.
  - make a breach in.
- break (a law, agreement, or code of conduct).
Phrase
  
    - breach of the peace
 public disturbance, or an act considered likely to cause one.
- breach of promise
 the action of breaking a sworn assurance.
- step into the breach
 replace someone who is suddenly unable to do a job.
 
  Etymology
  ME: from OFr. breche, ult. of Gmc origin; rel. to break1.