Definitions

1. noun

the forward or windward corner of a sail

“He adjusted the sail to catch the wind at the luff.”

2. verb

to fill (a sail) with wind, especially so as to make it stand out from the mast or boom

“The sailors luffed the sails to prepare for the storm.”

3. verb

to turn (a vessel) into the wind, especially so as to check its progress or to make it head in the opposite direction

“The ship luffed into the strong headwind to slow down.”

4. noun

a gentle breeze; a light wind

“A luff blew through the trees, rustling the leaves.”

5. noun

a side or corner of something, especially a sail

“The luff of the sail was damaged in the collision.”