athletics vs ski

athletics and ski both are nouns.

Word	Noun	Adjective	Verb	Adverb
athletics	Yes	No	No	No
ski	Yes	No	Yes	No

athletics (noun)	ski (noun)
an active diversion requiring physical exertion and competition	narrow wood or metal or plastic runners used in pairs for gliding over snow
participation in sports events as an extracurricular activity
a contest between athletes

athletics (verb)	ski (verb)
	move along on skis