separate vs solo

separate

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

  • To divide (a thing) into separate parts. 

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

  • 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). 

solo

verb
  • To perform something in the absence of anyone else. 

  • To drop the ball and then toe-kick it upward into the hands. 

  • To perform a solo. 

adj
  • Of, or relating to, a musical solo. 

  • Without a companion or instructor. 

adv
  • Alone, without a companion. 

noun
  • A job or performance done by one person alone. 

  • A piece of music for one performer. 

  • A card game similar to whist in which each player plays against the others in turn without a partner 

  • A single shot of espresso. 

  • An instance of soloing the football. 

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