beside vs contiguous

beside

prep
  • Not relevant to. 

  • Besides; in addition. 

  • Next to; at the side of. 

adv
  • Otherwise; else; besides. 

contiguous

adj
  • Connected; touching; abutting. 

  • Adjacent; neighboring. 

  • Connecting without a break. 

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