portability vs portable

portability and portable both are nouns.

Word	Noun	Adjective	Verb	Adverb
portability	Yes	No	No	No
portable	Yes	Yes	No	No

portability (noun)	portable (noun)
the quality of being light enough to be carried	a small light typewriter; usually with a case in which it can be carried

portability (adjective)	portable (adjective)
	easily or conveniently transported
	of a motor designed to be attached to the outside of a boat's hull