What does the word liar mean?

Usage examples for liar

  1. You do not know she is a liar!" – The Flight of the Shadow by George MacDonald
  2. " You call me a liar-" began the big lumberman savagely, edging up to the horse. – The Boy With the U. S. Foresters by Francis Rolt-Wheeler
  3. You're a liar if you say I know it. – The Seiners by James B. (James Brendan) Connolly