railroad track vs railway

railroad track and railway both are nouns.

Word	Noun	Adjective	Verb	Adverb
railroad track	Yes	No	No	No
railway	Yes	No	No	No

As nouns, railroad track and railway are synonyms defined as:

railroad track and railway: a line of track providing a runway for wheels

Other synonyms of railroad track include railroad.

railroad track (noun)	railway (noun)
a line of track providing a runway for wheels	line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight
	a line of track providing a runway for wheels