referee vs athletics

referee and athletics both are nouns.

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

referee (noun)	athletics (noun)
(sports) the chief official (as in boxing or American football) who is expected to ensure fair play	an active diversion requiring physical exertion and competition
someone who reads manuscripts and judges their suitability for publication	participation in sports events as an extracurricular activity
an attorney appointed by a court to investigate and report on a case	a contest between athletes

referee (verb)	athletics (verb)
evaluate professionally a colleague's work
be a referee or umpire in a sports competition