athletics vs speed skate

athletics and speed skate both are nouns.

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

athletics (noun)	speed skate (noun)
an active diversion requiring physical exertion and competition	an ice skate with a long blade; worn for racing
participation in sports events as an extracurricular activity
a contest between athletes

athletics (verb)	speed skate (verb)
	race on skates