a concrete barrier used to separate lanes of traffic

(finish carpentry, interior decorating) A molding, traditionally of wood, intended to prevent chairs from contacting the painted plaster of a wall.

(rail transport) A rail laid parallel to a running rail to guide wheels through points, rail crossings, and round curves, to reduce wear and the risk of derailments such as those due to flange climb.

plural of rail head

(US, Canada, rail transport) A kind of passenger railway in urban and suburban settings typically characterized by a mixture of tram (or in North America streetcar) and metro features, crossing streets at grade crossings and normally powered by electricity.

(simile, colloquial) Especially of a person, very skinny.

A training device used for practicing skateboarding tricks, such as a grind or a board slide.

The transport of passengers and goods by means of wheeled vehicles specially designed to run on railways or railroads.

A type of wooden barrier positioned lengthwise down the center of a jousting arena (known as the list or tiltyard), used during competitive jousting events to separate the combatants and to ensure that their steeds will follow a parallel trajectory from one end of the field to the other.

Alternative spelling of railcar