Entrance. The lower part of a vessel’s stem.
Fag end. The end that is frayed.
Fall off. To move away from the wind.
Fathom. Six feet.
Fid. A sharp, tapered tool used in splicing rope.
Fill away. To have the wind fill the after surfaces of the sails and the vessel proceed on her course.
Fore reach. To pass to windward of another vessel when close hauled.
Foul. Anything entangled. To come into contact.
Furl. To stow a sail.
Gaff. The spar that supports the top of a fore-and-aft sail. A pole with a sharp hook on the end.