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Meaning of luff

luff

Pronunciation: (luf), [key]
— n. Naut.
  1. the forward edge of a fore-and-aft sail. See diag. under
—v.i.
  1. to bring the head of a sailing ship closer to or directly into the wind, with sails shaking.
  2. (of a sail) to shake from being set too close to the wind: The sail luffed as we put about for port.
  3. to raise or lower the outer end of the boom of a crane or derrick so as to move its load horizontally.
—v.t.
  1. to set (the helm of a ship) in such a way as to bring the head of the ship into the wind.
  2. to raise or lower the outer end of (the boom of a crane or derrick).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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