mix up vs streamline

mix up

verb
  • To become involved with, especially socially or romantically. 

  • To confuse or reverse. 

  • To prepare something from ingredients that are mixed. 

  • To shuffle. 

  • To combine thoroughly. 

  • To mix or blend thoroughly and completely. 

noun
  • A mix, blend, or variety. 

  • A confusion or reversal. 

streamline

verb
  • To design and construct the contours of a vehicle etc. so as to offer the least resistance to its flow through a fluid. 

  • To simplify or organize a process in order to increase its efficiency. 

  • To modernise. 

noun
  • On a weather chart, a line that is tangent to the flow of the wind. 

  • A line that is tangent to the velocity of flow of a fluid; equivalent to the path of a specific particle in that flow. 

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