Floater

['fləʊtə] or ['flotɚ]

(noun.) an insurance policy covering loss of movable property (e.g. jewelry) regardless of its location.

(noun.) an object that floats or is capable of floating.

(noun.) a swimmer who floats in the water.

(noun.) a voter who votes illegally at different polling places in the same election.

(noun.) an employee who is reassigned from job to job as needed.

(noun.) a debt instrument with a variable interest rate tied to some other interest rate (e.g. the rate paid by T-bills).

Checked by Adelaide--From WordNet

(n.) One who floats or swims.

(n.) A float for indicating the height of a liquid surface.

Checked by Barry