Protection

n.
  1. The act of protecting, or the state of being protected; preservation from loss, injury, or annoyance; defense; shelter; as, the weak need protection.
  2. That which protects or preserves from injury; a defense; a shield; a refuge.
  3. A writing that protects or secures from molestation or arrest; a pass; a safe-conduct; a passport.
  4. (Polit. Econ.) A theory, or a policy, of protecting the producers in a country from foreign competition in the home market by the imposition of such discriminating duties on goods of foreign production as will restrict or prevent their importation; -- opposed to free trade.
  5. Writ of protection
    1. A writ by which the king formerly exempted a person from arrest; -- now disused
    2. A judicial writ issued to a person required to attend court, as party, juror, etc., intended to secure him from arrest in coming, staying, and returning.