athletics vs coach

athletics and coach both are nouns.

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

athletics (noun)	coach (noun)
an active diversion requiring physical exertion and competition	a carriage pulled by four horses with one driver
participation in sports events as an extracurricular activity	a railcar where passengers ride
a contest between athletes	a vehicle carrying many passengers; used for public transport
	a person who gives private instruction (as in singing, acting, etc.)
	(sports) someone in charge of training an athlete or a team

athletics (verb)	coach (verb)
	teach and supervise (someone); act as a trainer or coach (to), as in sports
	drive or operate a coach or carriage