rack railway(n = noun.artifact) cog railway - railway for steep mountains; a cogwheel on the locomotive engages cogs on a center rail to provide traction;
is a kind of railroad, railroad line, railway, railway line, railway system

a'89rial railway, bicycle rack, bomb rack, cable railway, cash railway, coat rack, cog railway, dish rack, dress rack, elevated railway, funicular railway, luggage rack, magazine rack, music rack, overhead railway, pipe rack, plate rack, rack, rack and pinion, rack of lamb, rack rent, rack up, railway, railway car, railway express, railway junction, railway line, railway locomotive, railway man, railway station, railway system, railway yard, roof rack, scenic railway, ship railway, ski rack, spice rack, tie rack, towel rack, tube railway, underground railway