corkscrew vs trepan

corkscrew

noun
  • The screw-shaped worm of a typical corkscrew. 

  • An implement for opening bottles that are sealed by a cork. Sometimes specifically such an implement that includes a screw-shaped part, or worm. 

  • A type of inversion used in roller coasters. 

  • A type of sharp, twisting punch, often one thrown close and from the side. 

adj
  • Having the tightly winding shape of a corkscrew. 

verb
  • To extract information or consent from someone. 

  • To cause something to twist or move in a spiral path or shape. 

  • To wind or twist in the manner of a corkscrew; to move with much horizontal and vertical shifting. 

trepan

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. 

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. 

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