noun (n)

• a mark of a foot or shoe on a surface(noun.communication)

  Example:
  The police made casts of the footprints in the soft earth outside the window.
  

  Synonym:
  footmark, step
  

  source: wordnet30
• a trace suggesting that something was once present or felt or otherwise important(noun.communication)

  Example:
  The footprints of an earlier civilization.
  

  source: wordnet30
• the area taken up by some object(noun.attribute)

  Example:
  The computer had a desktop footprint of 10 by 16 inches.
  

  source: wordnet30
• The impression of the foot; a trace or footmark; as, "Footprints of the Creator."(noun)

  source: webster1913