noun

• (law) A breaking or infraction of a law, or of any obligation or tie; violation; non-fulfillment.
  "breach of promise"
• (figurative) A difference in opinions, social class, etc.
  "For London to have its own exclusive immigration policy would exacerbate the sense that immigration benefits only certain groups and disadvantages the rest. It would entrench the gap between London and the rest of the nation. And it would widen the breach between the public and the elite that has helped fuel anti-immigrant hostility."
• (archaic) A bruise; a wound.
  "An vncouth paine torments my grieued ſoule, And death arreſts the organe of my voyce. Who entring at the breach thy ſword hath made, Sackes euery vaine and artier of my heart, […]"
• (archaic) A hernia; a rupture.

verb

• (transitive) To make a breach in.
  "They breached the outer wall, but not the main one."
• (transitive) To violate or break.
  ""I therefore agree with the Court that the Government did breach its contract with petitioners in failing to approve, within 30 days of its receipt, the plan of exploration petitioners submitted.""
• (transitive, nautical, of the sea) To break into a ship or into a coastal defence.
  "On this occasion, the damage was far more serious. The sea wall was breached completely for a distance of over 50 yd., and the gap had to be bridged by a temporary timber viaduct."
• (intransitive) To suffer a breach.
  "Picard: We don't have time for this! The Pasteur’s core is going to breach!"

name

• (computing) A particular security exploit against HTTPS when using HTTP compression, based on the CRIME exploit.