sheer vs snap fastener

sheer

noun
  • A sheer curtain or fabric. 

  • An abrupt swerve from the course of a ship. 

  • The curve of the main deck or gunwale from bow to stern. 

verb
  • To swerve from a course. 

adj
  • Used to emphasize the amount or degree of something. 

  • Very steep; almost vertical or perpendicular. 

  • Downright; complete; pure. 

  • Very thin or transparent. 

snap fastener

noun
  • a pair of male/female interlocking disks used to fasten a piece of clothing in place of buttons 

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