Hard

Hard or Hardness may refer to:

  • Hardness, resistance of physical materials to change under force
  • Hard water, water with a high mineral content
  • NP-hard, a term used in Computational complexity theory
  • Hard, Austria, a town in Austria
  • Hard (Zurich), a quarter in Zürich
  • Hard (tennis), a type of tennis court
  • Hard (music festival), concerts and live events
  • Hard, or hard-on, a slang term for an erection
  • Hard (nautical), a firm or paved beach or slope convenient for hauling vessels out of the water
  • Hard (surname)
  • Hayward Area Recreation and Park District, abbreviated H.A.R.D.

Read more about Hard:  Music

Famous quotes containing the word hard:

    It is hard for those who have never known persecution,
    And who have never known a Christian,
    To believe these tales of Christian persecution.
    It is hard for those who live near a Bank
    To doubt the security of their money.
    —T.S. (Thomas Stearns)

    It is often hard to determine whether a clear, open, and honorable proceeding is the result of goodness or of cunning.
    François, Duc De La Rochefoucauld (1613–1680)

    Conceptual relativism is a heady and exotic doctrine, or would be if we could make good sense of it. The trouble is, as so often in philosophy, it is hard to improve intelligibility while retaining the excitement.
    Donald Davidson (b. 1917)