one of the tubes carrying blood from the heart to all parts of the body

channel

a stretch of water joining two seas

pathway, usually containing water

a pipe, channel etc used for carrying away water, sewage and other unwanted liquids

channel through which liquid runs off

a thin tube through which liquid in the body flows; a tube, outlet, for air (e.g. in a plane)

channel, pipe

an opening in a hedge, fence, wall etc able to be closed by a barrier; a barrier used to control the passage of water, e.g. into or out of a dam

movable barrier at entrance

a long semi-circular pipe fixed under the edge of a roof to carry away rainwater; a long deep channel at the side of a road for rainwater

ditch

a tube through which liquids or gases can flow

passage, tube

a system of pipes (usually underground) used for carrying water, oil, cables etc

canal

a thin tube for small quantities of liquid, especially used in chemistry

hose

a person who sews; an underground pipe etc used to carry off sewage

drain

a long, hollow pipe of metal, glass or rubber, especially for holding or carrying air, liquids etc; (in London) underground railway; a long hollow organ in the body

hose

a revolving gate that allows one person through at a time

movable barrier at entrance

a pipe used for carrying away used water

pipe through which water moves