hockey coach vs coach

hockey coach and coach both are nouns.

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

As nouns, coach is a hypernym of hockey coach; that is, coach is a word with a broader meaning than hockey coach:

Other hypernyms of hockey coach include handler, manager.

hockey coach (noun)	coach (noun)
a coach of hockey players	a carriage pulled by four horses with one driver
	a railcar where passengers ride
	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

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