breach vs separation

breach

noun
  • A breaking up of amicable relations, a falling-out. 

  • The act of breaking, in a figurative sense. 

  • A breaking or infraction of a law, or of any obligation or tie; violation; non-fulfillment 

  • A difference in opinions, social class etc. 

  • A breaking of waters, as over a vessel or a coastal defence; the waters themselves 

  • A breaking out upon; an assault. 

  • A gap or opening made by breaking or battering, as in a wall, fortification or levee / embankment; the space between the parts of a solid body rent by violence 

verb
  • To break into a ship or into a coastal defence. 

  • To make a breach in. 

  • To leap out of the water. 

  • To violate or break. 

  • To charge or convict (someone) of breaching the terms of a bail, probation, recognizance, etc. 

separation

noun
  • The act of disuniting two or more things, or the condition of being separated. 

  • Departure from active duty, while not necessarily leaving the service entirely. 

  • An agreement legalizing such an arrangement. 

  • An object that separates two spaces. 

  • The act or condition of two or more people being separated from one another. 

  • The place at which a division occurs. 

  • An interval, gap or space that separates things or people. 

  • The act or condition of a married couple living in separate homes while remaining legally married. 

How often have the words breach and separation occurred in a corpus of books? (source: Google Ngram Viewer )