transcontinental railroad
subway; tube; underground railroad; underground railway
railroad network; railroad system
railway station; train station
railroad track; rail line
high-speed rail; rapid (rail) transit
railroad operating over private tracks
railway vehicle; railroad vehicle
train buff; railway enthusiast; trainspotter; railfan
railway police; railroad police
rail transport (transportation, transit); transport by rail
railroad construction work
Japanese National Railways (1949-1987)
elevated railroad; elevated railway
railroad security officer
railway police officer (pre-1987)
railway police (Japan); Railway Police Force
railroad facility; railway equipment
elevated railway; overhead railway
railway ferry; train ferry
cable railway; funicular railway