athletics vs bobsled

athletics and bobsled both are nouns.

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

athletics (noun)	bobsled (noun)
an active diversion requiring physical exertion and competition	a long racing sled (for 2 or more people) with a steering mechanism
participation in sports events as an extracurricular activity	formerly two short sleds coupled together
a contest between athletes

athletics (verb)	bobsled (verb)
	ride a bobsled