Definition of races:
(n) :
A contest between people, animals, vehicles, etc. where the goal is to be the first to reach some objective.
(n) :
Swift progress; rapid motion; an instance of moving or driving at high speed.
(n) :
(electronics, computing) A race condition; a bug or problem that occurs when two or more components attempt to use the same resource at the same time.
(n) :
A sequence of events; a progressive movement toward a goal.
(n) :
A fast-moving current of water.
(n) :
A water channel, especially one built to lead water to or from a point where it is utilised, such as that which powers a millwheel.