contour vs stencil

contour

noun
  • An outline, boundary or border, usually of curved shape. 

  • a speech sound which behaves as a single segment, but which makes an internal transition from one quality, place, or manner to another. 

  • A line on a map or chart delineating those points which have the same altitude or other plotted quantity: a contour line or isopleth. 

  • A general description giving the most important points. 

verb
  • To mark with contour lines. 

  • To form a more or less curved boundary or border upon. 

  • To practise the makeup technique of contouring. 

stencil

noun
  • A thin sheet, either perforated or using some other technique, with which a pattern may be produced upon a surface; a utensil that contains a perforated sheet. 

  • A two-ply master sheet for use with a mimeograph. 

  • A pattern produced using such a utensil. 

verb
  • To print with a stencil. 

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