safety razor vs trimmer

safety razor

noun
  • A razor, designed for safety, that protects the skin from all but the very edge of the blade (as opposed to a straight razor). 

trimmer

noun
  • A device used to trim. 

  • One who trims, arranges, fits, or ornaments. 

  • A person employed to rearrange the coal in the hold of a vessel, so that it fills the vessel without forming a conical blockage. 

  • Someone who fluctuates between opposing factions, political parties etc., according to current interest, a flip-flopper. 

  • A device for storing coal in gradually increasing piles made by building up at the point of the cone or top of the prism. 

  • A beam into which are framed the ends of headers in floor framing, as when a hole is to be left for stairs, or to avoid bringing joists near chimneys. 

  • A float bearing a baited hook and line, used in fishing for pike. 

  • A member of the crew who trims the sails. 

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