film vs mat

film

noun
  • A thin layer of some substance; a pellicle; a membranous covering, causing opacity. 

  • A medium used to capture images in a camera. 

  • A slender thread, such as that of a cobweb. 

  • A visual art form that consists of a sequence of still images preserved on a recording medium to give the illusion of motion; movies generally. 

verb
  • To cover or become covered with a thin skin or pellicle. 

  • To visually record (activity, or a motion picture) in general, with or without sound. 

  • To record (activity, or a motion picture) on photographic film. 

mat

noun
  • A thin surface layer; superficial cover. 

  • A floor pad to protect athletes. 

  • A small flat piece of material used to protect a surface from anything hot or rough; a coaster. 

  • A flat piece of coarse material used for wiping one’s feet, or as a decorative or protective floor covering. 

  • A material or component needed for a crafting recipe. 

  • A thickly tangled mess. 

  • An alloy of copper, tin, iron, etc.; white metal. 

  • A thin layer of woven, non-woven, or knitted fiber that serves as reinforcement to a material. 

verb
  • To cover, protect or decorate with mats. 

  • To form a thick, tangled mess; to interweave into, or like, a mat; to entangle. 

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