Bowsprit

A spar extending forward of the stem (often retractable on modern cruisers) to which an asymmetric spinnaker, code zero, or gennaker tack is attached.

Test your knowledge

Know your nautical terms? Play the free SkipperCheck daily maritime quiz — COLREGs, navigation, VHF radio, seamanship. Earn points, climb the global leaderboard.

Play the Daily Quiz →

Related B-terms

Beam

The greatest width of the vessel measured at its widest point.

Beam reach

A point of sail in which the wind blows at roughly 90° to the boat's direction of travel.

Bilge

The lowest internal part of the hull, where water inevitably drains and collects.

Breastline

A short line led directly from the vessel to the dock, holding the hull close alongside.

Back

(1) To haul a sail to windward so the wind fills the wrong side, stopping the boat or driv…

Ballast

Weight — usually carried low in the keel — that lowers the centre of gravity and gives the…

← Back to full glossary