letterhead vs wallpaper

letterhead

noun
  • Paper marked with a letterhead. 

  • A portion of text at the top of a letter, identifying the sender and often giving their address etc., used for formal correspondence. 

wallpaper

noun
  • A roll of such paper. 

  • Anything that serves as a background or part of the surroundings. 

  • Generic footage of a building or location that may be used in the background of a related news report. 

  • Decorative paper-like material used to cover the inner walls of buildings. 

  • A style or design of such material. 

  • A radio operator's collection of awards and QSL cards. 

  • An image or tiled pattern used as the background of a computer desktop. 

  • Gaudy mass-produced stamps, typically of little or no value and only produced for sale to collectors. 

verb
  • To cover (a wall, a room, etc) with wallpaper. 

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