introduce vs suggest

introduce

verb
  • To cause (someone) to be acquainted (with someone else). 

  • To add (something) to a system, a mixture, or a container. 

  • To bring (something) into practice. 

  • To make (something or someone) known by formal announcement or recommendation. 

suggest

verb
  • To cause one to suppose (something); to bring to one's mind the idea (of something). 

  • To explicitly mention (something) as a possibility for consideration, often to recommend it 

  • To imply but stop short of explicitly stating (something). 

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