Outrigger

1. Generally, a structure projecting from the side of a vessel.
2. Any contraposing float rigging beyond the side of a vessel to improve the vessel's stability.
3. A thin, long, solid, hull used to stabilize the inherently unstable main hull of an outrigger canoe or a sailboat.
4. A variety of structures projecting from a keelboat by which the running rigging may be attached outboard of the hull.
5. A pole or series of poles projecting from a fishing vessel that allow the vessel to trawl with more fishing lines in the water without the lines tangling and allowing lures and bait to simulate a school of fish.
6. A triangular frame on a rowboat or galley that holds the rowlock away from the saxboard or gunwale to optimize leverage for the rowers. Also called a rigger.