pigeonhole vs put back

pigeonhole

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

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

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. 

put back

verb
  • To postpone an arranged event or appointment. 

  • To turn back; to return. 

  • To change the time in a time zone to an earlier time. 

  • To return something to its original place. 

  • To drink fast; to knock down alcohol. 

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