luff
/lสf/noun
- 1
The vertical edge of a sail that is closest to the direction of the wind.
โBy easing the halyard, the luff of the sail was made to sag to leeward.โ
- 2
The act of sailing a ship close to the wind.
- 3
The roundest part of a ship's bow.
- 4
The forward or weather leech of a sail, especially of the jib, spanker, and other fore-and-aft sails.
verb
- 1
(of a sail) To shake due to being trimmed improperly.
- 2
(of a boat) To alter course to windward so that the sails luff. (Alternatively luff up)
- 3
To let out (a sail) so that it luffs.
- 4
To alter the vertical angle of the jib of a crane so as to bring it level with the load.
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