outrigger

A projecting beam or spar run out from the side of a vessel to help in securing the masts or from a mast to be used in extending a rope or sail.

A long thin float attached parallel to a seagoing canoe by projecting spars as a means of preventing it from capsizing.

A vessel fitted with such a float or beam.

A support for an oarlock projecting from the side of a racing shell.

A racing shell fitted with such a support.

A projecting frame extending laterally beyond the main structure of a vehicle, aircraft, or machine to stabilize the structure or support an extending part.

A frame used on a farm wagon, to enable it to carry larger loads, as of hay.

Nautical: A spar rigged out from a ship’s top or crosstrees, to spread the breast-backstays.

Any boom rigged out from a ship’s side to hang boats by.