Definition of "Race" :

noun: a canal for a current of water

noun: a contest of speed

"The race is to the swift."

noun: any competition

"The race for the presidency."

noun: people who are believed to belong to the same genetic stock

"Some biologists doubt that there are important genetic differences between races of human beings."

noun: (biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species

noun: the flow of air that is driven backwards by an aircraft propeller

verb: compete in a race

"Let's race and see who gets there first."

verb: move hurridly

"The cars raced down the street."

verb: cause to move fast or to rush or race

"The psychologist raced the rats through a long maze."

verb: to work as fast as possible towards a goal, sometimes in competition with others