floatation vs float

floatation and float both are nouns.

Word	Noun	Adjective	Verb	Adverb
floatation	Yes	No	No	No
float	Yes	No	Yes	No

floatation (noun)	float (noun)
financing a commercial enterprise by bond or stock shares	an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
the phenomenon of floating (remaining on the surface of a liquid without sinking)	something that floats on the surface of water
	a hand tool with a flat face used for smoothing and finishing the surface of plaster or cement or stucco
	an elaborate display mounted on a platform carried by a truck (or pulled by a truck) in a procession or parade
	a drink with ice cream floating in it
	the number of shares outstanding and available for trading by the public
	the time interval between the deposit of a check in a bank and its payment

floatation (verb)	float (verb)
	convert from a fixed point notation to a floating point notation
	allow (currencies) to fluctuate
	make the surface of level or smooth
	put into the water
	be in motion due to some air or water current
	be afloat either on or below a liquid surface and not sink to the bottom
	set afloat
	move lightly, as if suspended
	circulate or discuss tentatively; test the waters with