Definitions:
a competition between runners, horses, vehicles, etc. to see which is the fastest in covering a set course

a strong or rapid current flowing through a narrow channel in the sea or a river

a water channel, especially one built to lead water to or from a point where its energy is utilized, as in a mill or mine.

a smooth ring-shaped groove or guide in which a ball bearing or roller bearing runs.

a fenced passageway in a stockyard through which animals pass singly for branding, loading, washing, etc.

(in weaving) the channel along which the shuttle moves.

compete with another or others to see who is fastest at covering a set course or achieving an objective

move or progress swiftly or at full speed

each of the major groupings into which humankind is considered (in various theories or contexts) to be divided on the basis of physical characteristics or shared ancestry

a ginger root.