mix-up vs solution

mix-up

noun
  • A confusion, mistake, muddle or misunderstanding 

solution

verb
  • To treat with a solution. 

noun
  • A homogeneous mixture, which may be liquid, gas or solid, formed by dissolving one or more substances. 

  • An act, plan or other means, used or proposed, to solve a problem. 

  • An answer to a problem. 

  • A product, service or suite thereof, especially software. 

  • The act of dissolving, especially of a solid by a fluid; dissolution. 

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