Main Page | See live article | Alphabetical index The word luff in sailing has three meanings, all related. A luff is the front edge of a sail. A luff is also the act of turning a sailboat toward the wind. Finally, a luff is the movement of the front part of a sail when it is turned into the wind so that the wind pressure changes sides. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.