reduction vs retire

reduction

noun
  • The act, process, or result of reducing. 

  • a transformation of one problem into another problem, such as mapping reduction or polynomial reduction. 

  • An arrangement for a far smaller number of parties, e.g. a keyboard solo based on a full opera. 

  • A reduced price of something by a fraction or decimal. 

  • The amount or rate by which something is reduced, e.g. in price. 

  • A reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen. 

  • The rewriting of an expression into a simpler form. 

  • The process of rapidly boiling a sauce to concentrate it. 

  • A philosophical procedure intended to reveal the objects of consciousness as pure phenomena. (See phenomenological reduction.) 

  • The ratio of a material's change in thickness compared to its thickness prior to forging and/or rolling. 

  • A medical procedure to restore a fracture or dislocation to the correct alignment, usually with a closed approach but sometimes with an open approach (surgery). 

retire

noun
  • The act of retiring, or the state of being retired. 

  • A place to which one retires. 

verb
  • To stop working on a permanent basis, usually because of old age or illness. 

  • To cease use or production of something. 

  • To go back or return; to withdraw or retreat, especially from public view; to go into privacy. 

  • To fit (a vehicle) with new tires. 

  • To recede; to fall or bend back. 

  • To go to bed. 

  • To withdraw; to take away. 

  • To voluntarily stop batting before being dismissed so that the next batsman can bat. 

  • To retreat from action or danger; to withdraw for safety or pleasure. 

  • To withdraw from circulation, or from the market; to take up and pay. 

  • To cause to retire; specifically, to designate as no longer qualified for active service; to place on the retired list. 

  • To make a play which results in a runner or the batter being out, either by means of a put out, fly out or strikeout. 

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