(chiefly UK, Ireland and Commonwealth of Nations) A transport system using rails used to move passengers or goods.

(chiefly US) A permanent track consisting of fixed metal rails to drive trains or similar motorized vehicles on.

(transitive) To transport via railroad. / (intransitive) To operate a railroad. / (intransitive) To work for a railroad. / (intransitive) To travel by railroad.

One who rails.

Good-natured banter, jest, or ridicule.

(US) Any railway vehicle or rolling stock.

(historical) The Pre-American Civil War anti-slavery resistance movement dedicated to assisting escaped slaves in reaching safe territory.

A system involving an enclosed carriage suspended on a series of wires, usually attached to a steep mountain slope, used for personal transportation over normally untraversable territory.

(rail transport) A self-propelled railway vehicle for passengers, similar to a bus.

(rail transport, US) A heavy, preserved piece of hewn timber laid crossways to and supporting the rails of a railroad or a member of similar shape and function of another material such as concrete.