Meaning of RAILROAD LINE

WordNet Dictionary
	Definition:		[n]  line that is the commercial organization responsible for operating a railway system
	Synonyms:		railroad, railway, railway line, railway system
	See Also:		cable railway, cog railway, el, elevated railroad, elevated railway, funicular, funicular railway, line, metro, monorail, overhead railway, rack railway, rail, scenic railway, subway, tube, underground