exchange vs invest

exchange

verb
  • To trade or barter. 

  • To replace with, as a substitute. 

  • To recommend and get recommendations. 

noun
  • The transfer of substances or elements like gas, amino-acids, ions etc. sometimes through a surface like a membrane. 

  • The fourth through sixth digits of a ten-digit phone number (the first three before the introduction of area codes). 

  • The loss of a minor piece (typically a bishop or knight) and associated capture of the more advantageous rook. 

  • A telephone exchange. 

  • A conversation. 

  • An act of exchanging or trading. 

  • The difference between the values of money in different places. 

  • A place for conducting trading. 

  • The loss of one piece and associated capture of another. 

invest

verb
  • To make investments. 

  • To surround, accompany, or attend. 

  • To spend money, time, or energy on something, especially for some benefit or purpose; used with in. 

  • To commit money or capital in the hope of financial gain. 

  • To ceremonially install someone in some office. 

  • To lay siege to. 

  • To be involved in; to form strong attachments to. 

  • To prepare for lost wax casting by creating an investment mold (a mixture of a silica sand and plaster). 

  • To formally give (someone) some power or authority. 

  • To envelop, wrap, cover. 

  • To formally give (power or authority). 

noun
  • An unnamed tropical weather pattern "to investigate" for development into a significant (named) system. 

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