noun (n)

• broadcasting visual images of stationary or moving objects(noun.communication)

  Synonym:
  telecasting, television, video
  

  source: wordnet30
• an electronic device that receives television signals and displays them on a screen(noun.artifact)

  Example:
  The British call a tv set a telly.
  

  Synonym:
  boob tube, goggle box, idiot box, television, television receiver, television set, telly, tv set
  

  source: wordnet30