flotage

noun

1. an act of floating.
2. the state of floating.
3. floating power; buoyancy.
4. anything that floats; flotsam.
5. the part of a ship above the water line.

noun

1. the act or state of floating; flotation
2. buoyancy; power or ability to float
3. objects or material that float on the surface of the water; flotsam