canvas vs drafting

canvas

noun
  • A mesh of loosely woven cotton strands or molded plastic to be decorated with needlepoint, cross-stitch, rug hooking, or other crafts. 

  • A piece of canvas cloth stretched across a frame on which one may paint. 

  • A basis for creative work. 

  • A painting, or a picture on canvas. 

  • A type of coarse cloth, woven from hemp, useful for making sails and tents or as a surface for paintings. 

  • A tent. 

  • A rough draft or model of a song, air, or other literary or musical composition; especially one to show a poet the measure of the verses he is to make. 

  • A region on which graphics can be rendered. 

  • Athletic shoes. 

  • Sails in general. 

verb
  • To cover (an area or object) with canvas. 

drafting

noun
  • A method of preparing fibers for weaving. 

  • The act or process of producing a technical drawing, or draft. 

  • The practice among ground vehicle drivers or cyclists of following in a close line to reduce wind resistance. 

  • A profession, usually related to making technical drawings for architecture, engineering, or manufacturing. 

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