interchange vs remain

interchange

verb
  • to alternate; to intermingle or vary 

  • to swap or change places 

  • to mutually give and receive (something); to exchange 

  • To act as or carry out an interchange (noun, senses 2, 3). 

  • to switch (each of two things) 

noun
  • A connection between two or more lines, services or modes of transport; a station at which such a connection can be made. 

  • An act of interchanging. 

  • A highway junction in which traffic may change from one road to another without crossing a stream of traffic. 

remain

verb
  • To continue unchanged in place, form, or condition, or undiminished in quantity; to abide; to stay; to endure; to last. 

  • To await; to be left to. 

  • To continue in a state of being. 

  • To be left after a number or quantity has been subtracted or cut off; to be left as not included or comprised. 

  • To stay after others or other parts have been removed or otherwise disappeared. 

noun
  • That which is left; relic; remainder. 

  • That which is left of a human being after the life is gone; relics; a dead body. 

  • Posthumous works or productions, especially literary works. 

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