Definition of "railroad line" [railroad line]

• Line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight (noun)

WordNet. Princeton University. 2010.

• "He had come up from Rome using the railroad line that we had finally gotten over, or more often through, the Alps. The individual cars were each pulled by one of the Big People, and managed to average fifty miles an hour, although our hour was twice as long as the one used in the modern world."
• "Although the new railroad line and the deck over West Street were ultimately set aside as too expensive, many of the components of the plan are being realized: the restored Greenwich and Fulton streets, the office towers and a new station on the east side of Greenwich Street, and a memorial that incorporates the Twin Tower footprints."