Definitionen
1.NounThe vertical edge of a sail that is closest to the direction of the wind."By easing the halyard, the luff of the sail was made to sag to leeward."
2.NounThe act of sailing a ship close to the wind.
3.NounThe roundest part of a ship's bow.
4.NounThe forward or weather leech of a sail, especially of the jib, spanker, and other fore-and-aft sails.
5.VerbTo shake due to being trimmed improperly.
6.VerbTo bring the ship's head up closer to the wind. (Alternatively luff up)
7.Verbto let out (a sail) so that it luffs.
8.VerbTo alter the vertical angle of the jib of a crane so as to bring it level with the load.