racecourse vs raceway

racecourse and raceway both are nouns.

Word	Noun	Adjective	Verb	Adverb
racecourse	Yes	No	No	No
raceway	Yes	No	No	No

As nouns, racecourse and raceway are synonyms defined as:

Other synonyms of racecourse include racetrack, track.

racecourse (noun)	raceway (noun)
a course over which races are run	a canal for a current of water
	a course over which races are run