hurdle vs athletics

hurdle and athletics both are nouns.

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

hurdle (noun)	athletics (noun)
the act of jumping over an obstacle	an active diversion requiring physical exertion and competition
a light movable barrier that competitors must leap over in certain races	participation in sports events as an extracurricular activity
an obstacle that you are expected to overcome	a contest between athletes

hurdle (verb)	athletics (verb)
jump a hurdle