racy vs mobile

racy is not a noun while mobile is a noun.

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

racy (noun)	mobile (noun)
	sculpture suspended in midair whose delicately balanced parts can be set in motion by air currents

racy (adjective)	mobile (adjective)
designed or suitable for competing in a race	moving or capable of moving readily (especially from place to place)
suggestive of sexual impropriety	having transportation available
full of zest or vigor	migratory
marked by richness and fullness of flavor	affording change (especially in social status)
	capable of changing quickly from one state or condition to another