float
noun
1.
the time interval between the deposit of a check in a bank and its payment
2.
the number of shares outstanding and available for trading by the public
3.
a drink with ice cream floating in it
4.
an elaborate display mounted on a platform carried by a truck (or pulled by a truck) in a procession or parade
5.
a hand tool with a flat face used for smoothing and finishing the surface of plaster or cement or stucco
7.
an air-filled sac near the spinal column in many fishes that helps maintain buoyancy