take in vs understand

take in

verb
  • To absorb or comprehend. 

  • To allow a person or an animal to live in one's home. 

  • To receive (goods) into one's home for the purpose of processing for a fee. 

  • To enjoy or appreciate. 

  • To deceive; to hoodwink. 

  • To tighten (a belaying rope). (Also take up.) 

  • To shorten (a garment) or make it smaller. 

  • To attend a showing of. 

  • To reef. 

understand

verb
  • To grasp a concept fully in one's mind, especially (of words, statements, art, etc.) to be aware of the meaning of and (of people) to be aware of the intent of. 

  • To believe, to think one grasps sufficiently despite potentially incomplete knowledge. 

  • To stand underneath, to support. 

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