a bar or series of bars fixed on upright supports or attached to a wall or ceiling, serving as part of a barrier or used to hang things on

a curtain rail

a steel bar or continuous line of bars laid on the ground as one of a pair forming a railway track

the goods train left the rails

the edge of a surfboard or sailboard

a horizontal piece in the frame of a panelled door or sash window

a conductor which is maintained at a fixed potential and to which other parts of a circuit are connected

the anode must be connected to the positive supply rail

provide or enclose (a space or place) with a rail or rails

the altar is railed off from the nave

convey (goods) by rail

perishables were railed into Manhattan

(in windsurfing) sail the board on its edge

the more you pull down on the boom, the more you rail

(of a man) have vigorous penetrative sex with (someone)

complain or protest strongly and persistently about

he railed at human fickleness

a secretive bird with drab grey and brown plumage, typically having a long bill and found in dense waterside vegetation