subway Synonyms

metro rapid transit underpass tube underground railway underground freight train public transit elevated railway gray market magnetron maglev passenger train iron horse rail line railway line choo-choo underground rail system subway system pedestrian underpass tunnels subways busline trains underground railroad railroad station light rail crawlway crawl space tree lawn railway station monorail klystron public transport warren pipette pipe locomotive line hole funicular conduit chute channel cannula bus burrow antre rail railroad