distinguish vs pick up on

distinguish

verb
  • To see someone or something clearly or distinctly. 

  • To make oneself noticeably different or better from others through accomplishments. 

  • To recognize someone or something as different from others based on its characteristics. 

  • To confer an honor upon. 

pick up on

verb
  • To notice, observe, learn, or understand, especially something otherwise overlooked. 

  • To adopt a practice in which others already engage. 

  • To continue or build upon (for example, a task, analysis, or narrative), beginning from a point at which someone has previously stopped. 

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