Fast

Fetch

The distance of open water, to windward, over which the wind has blown — the longer the fe…

Foul weather gear

Waterproof clothing — jacket, trousers (salopettes), sea boots — for sailing in wet or hea…

Flare

A pyrotechnic distress signal — handheld red flares are for close-range visibility, parach…

Fall off

To alter course away from the wind (see also head down and bear away).

Forward

Toward the bow.

Following sea

A wave train overtaking the vessel from astern.