1. The act or state of floating; buoyancy.
Usage: Also spelled 'floatage'; somewhat formal or technical
2. Material or objects that float; floating debris or wreckage.
Usage: Often used in nautical or legal contexts
3. The right to use water for floating logs or timber downstream.
Usage: archaic; legal/commercial term related to logging

Examples

• The flotage of the raft depended on the buoyancy of its logs.
• After the storm, flotage washed up along the shore.
• The company purchased flotage rights to transport timber down the river.
• Engineers tested the flotage capacity of the new pontoon design.
• Fishermen cleared flotage from their nets before heading back to port.