distinguish vs separate

distinguish

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

  • To see someone or something clearly or distinctly. 

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

  • To confer an honor upon. 

separate

verb
  • To cause (things or people) to be separate. 

  • To disunite from a group or mass; to disconnect. 

  • To divide (a thing) into separate parts. 

  • To divide itself into separate pieces or substances. 

noun
  • A printing of an article from a periodical as its own distinct publication and distributed independently, often with different page numbers. 

  • Anything that is sold by itself, especially articles of clothing such as blouses, skirts, jackets, and pants. 

adj
  • Apart from (the rest); not connected to or attached to (anything else). 

  • Not together (with); not united (to). 

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