ream vs trepan

ream

verb
  • To enlarge a hole, especially using a reamer; to bore a hole wider. 

  • To sexually penetrate in a rough and painful way. 

  • To yell at or berate. 

  • To shape or form, especially using a reamer. 

  • To cream; mantle; foam; froth. 

  • To remove (material) by reaming. 

  • To remove burrs and debris from a freshly bored hole. 

noun
  • Cream; also, the creamlike froth on ale or other liquor; froth or foam in general. 

  • A bundle, package, or quantity of paper, nowadays usually containing 500 sheets. 

  • An abstract large amount of something. 

trepan

verb
  • To create a large hole by making a narrow groove outlining the shape of the hole and then removing the plug of material remaining by less expensive means. 

  • To use a trepan; to trephine. 

noun
  • A tool used to bore through rock when sinking shafts. 

  • A surgical instrument used to remove a circular section of bone from the skull; a trephine. 

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