Online Google Dictionary

luff 中文解釋 wordnet sense Collocation Usage Collins Definition
Verb
/ləf/,
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luffs, plural;
  1. Steer (a sailing vessel) nearer the wind to the point at which the sails just begin to flap
    • - I came aft and luffed her for the open sea
  2. Obstruct (an opponent in yacht racing) by sailing closer to the wind

  3. Raise or lower (the jib of a crane or derrick)

Noun
  1. The edge of a fore-and-aft sail next to the mast or stay

  1. sail close to the wind
  2. (nautical) the forward edge of a fore-and-aft sail that is next to the mast
  3. flap when the wind is blowing equally on both sides; "the sails luffed"
  4. In sailing the parts of a sail have common terminology for each corner and edge of the sail.
  5. In sailing, luffing refers to when a sailing vessel is steered far enough toward the direction of the wind ("windward"), or the sheet controlling a sail is eased so far past optimal trim, that airflow over the surfaces of the sail is disrupted and the sail begins to "flap" or "luff" (the luff of ...
  6. Luffness is a hamlet in East Lothian, Scotland. It lies between the towns of Gullane and Aberlady and is approximately 20 miles east of Edinburgh.
  7. The vertical edge of a sail that is closest to the direction of the wind; To shake due to being trimmed improperly; To alter course to windward so that the sails luff. ...
  8. (Luffing) A description of a flapping motion along the luff (leading edge) of a sail. A sail begins to luff when the air flow stalls when traveling across the sail. Luffing is a sign that the sail is not properly trimmed or that the boat is trying to sail too close to the eye of the wind (pinching.)
  9. (Luffing) Altering course toward the wind.
  10. (Luffing) When the sail is not taught and flaps in the wind
  11. when the air flow stalls around the kite. It may then stall and fall out of the sky. Like sails, a luffing kite has rippling and flapping panels. When launching the kite, if the kite is luffing, the rider should move farther upwind, or the person holding the kite should move downwind.
  12. Front edge of a sail. To luff, a racing tactic, to turn the boat towards the wind to prevent a boat passing to windward.
  13. A direction to the Steer's-man to put the Helm to leeward.
  14. (1) To rotate the sail parallel to the windline as occurs in the neutral position. (2) The section of sail that runs from the mast-tip to the mast-base.
  15. Sails flutter since they are not filled with wind.
  16. the leading edge of a jib or main sail. The jib luff attaches to the jib stay. The main luff attaches to the aft side of the mast.
  17. a Dutchman reacting to a funny joke, or what sailmakers make alot of.
  18. to turn into the wind.
  19. To bring a vessel's head nearer to the wind, so the sails start to spill wind, by putting the helm down or increasing the sail area toward the stern. Also the order--as in "luff round!" or "luff up!"--to throw the ship's head into the wind in order to tack.