concentrate vs mix

concentrate

verb
  • To approach or meet in a common center; to consolidate. 

  • To focus one's thought or attention (on). 

  • To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense. 

  • To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force. 

noun
  • A substance that is in a condensed form. 

mix

verb
  • To unite with in company; to join; to associate. 

  • To stir together. 

  • To blend by the use of a mixer (machine). 

  • To combine (several tracks). 

  • To combine (items from two or more sources normally kept separate). 

  • To form by mingling; to produce by the stirring together of ingredients; to concoct from different parts. 

  • To produce a finished version of (a recording). 

noun
  • The result of mixing two or more substances; a mixture. 

  • The result of combining items normally kept separate. 

  • The result of mixing several tracks. 

  • The finished version of a recording. 

  • A substance used to dilute or adulterate an illicit drug. 

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