adjacent vs close by

adjacent

prep
  • Related to; suggestive of; bordering on. 

  • Next to; beside. 

adj
  • Lying next to, close, or contiguous; neighboring; bordering on. 

  • Related to; suggestive of; bordering on. 

  • Just before, after, or facing. 

noun
  • Something that lies next to something else, especially the side of a right triangle that is neither the hypotenuse nor the opposite. 

close by

prep
  • With a noun-phrase complement. 

  • With the preposition to introducing a noun-phrase complement. 

  • With no explicit complement. 

  • Preceding and modifying a noun. 

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