athletics vs roller skate

athletics and roller skate both are nouns.

Word	Noun	Adjective	Verb	Adverb
athletics	Yes	No	No	No
roller skate	Yes	No	Yes	No

athletics (noun)	roller skate (noun)
an active diversion requiring physical exertion and competition	a shoe with pairs of rollers fixed to the sole
participation in sports events as an extracurricular activity
a contest between athletes

athletics (verb)	roller skate (verb)
	travel on shoes with steel or rubber rollers attached to their soles