collocate vs pigeonhole

collocate

noun
  • A component word of a collocation; a word that collocates with another. 

verb
  • (said of certain words) To be often used together, form a collocation; for example strong collocates with tea. 

  • To arrange or occur side by side. 

pigeonhole

noun
  • A category. 

  • One of an array of compartments for housing pigeons. 

  • One of an array of compartments for receiving mail and other messages at a college, office, etc. 

  • One of an array of compartments for storing scrolls at a library. 

  • A similar compartment in a desk, used for sorting and storing papers. 

verb
  • To categorize; especially to limit or be limited to a particular category, role, etc. 

  • To put aside, to not act on (proposals, suggestions, advice). 

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