back end vs end

back end

noun
  • The rear, back, or unseen portion (of something). 

  • The processing of spent fuel from a nuclear reactor into reusable materials. 

  • That part of a hardware or software system that is farthest from the user; the internals rather than the user interface. 

  • The latter end of any given time, especially the latter part of the year; autumn; late autumn. 

  • Money paid on a contingent deferred basis, for example, as a proportion of the profits or revenue of a work. 

end

noun
  • That which is left; a remnant; a fragment; a scrap. 

  • A period of play in which each team throws eight rocks, two per player, in alternating fashion. 

  • An ideal point of a graph or other complex. See End (graph theory) 

  • The most extreme point of an object, especially one that is longer than it is wide. 

  • Result. 

  • The cessation of an effort, activity, state, or motion. 

  • A purpose, goal, or aim. 

  • The terminal point of something in space or time. 

  • One of the yarns of the worsted warp in a Brussels carpet. 

  • Money. 

  • One of the two parts of the ground used as a descriptive name for half of the ground. 

  • Death. 

  • The position at the end of either the offensive or defensive line, a tight end, a split end, a defensive end. 

verb
  • to come to an end 

  • To finish, terminate. 

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