mobile vs mobility

mobile and mobility both are nouns.

Word	Noun	Adjective	Verb	Adverb
mobile	Yes	Yes	No	No
mobility	Yes	No	No	No

mobile (noun)	mobility (noun)
sculpture suspended in midair whose delicately balanced parts can be set in motion by air currents	the quality of moving freely

mobile (adjective)	mobility (adjective)
moving or capable of moving readily (especially from place to place)
having transportation available
migratory
affording change (especially in social status)
capable of changing quickly from one state or condition to another