athletics vs umpire

athletics and umpire both are nouns.

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

athletics (noun)	umpire (noun)
an active diversion requiring physical exertion and competition	an official at a baseball game
participation in sports events as an extracurricular activity	someone chosen to judge and decide a disputed issue
a contest between athletes

athletics (verb)	umpire (verb)
	be a referee or umpire in a sports competition