›[C or U]a system of tracks that trains travel along: Only 2,262 miles of railway are being used, while 9,358 need repairs.a railway line/station/trackAny big changes to the railway lines in Britain's crowded South-East would need parliament's approval.
›[C]the companies, work, and people involved in transporting people and goods by train: The Indian railway is the world's largest employer, with 1.6m staff and 11m passengers a day.