railway vs sleeper

railway and sleeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
railway	Yes	No	No	No
sleeper	Yes	No	No	No

railway (noun)	sleeper (noun)
line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight	an unexpected hit
a line of track providing a runway for wheels	tropical fish that resembles a goby and rests quietly on the bottom in shallow water
	a passenger car that has berths for sleeping
	one of the cross braces that support the rails on a railway track
	a piece of furniture that can be opened up into a bed
	pajamas with feet; worn by children
	a rester who is sleeping
	an unexpected achiever of success
	a spy or saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal