Definitions

1. noun

a person or animal that takes part in a competition, especially a speed contest, such as a car or motorcycle driver

“The Formula One driver was known as a top-notch racer.”

2. noun

a person or animal that runs or rides quickly, especially for pleasure or exercise

“The young athlete was a skilled horseback racer.”

3. noun

a person or thing that is in the lead or competing strongly

“The company has become a leading racer in the field of renewable energy.”

4. verb

to move or travel quickly, especially in a competitive context

“The new sports car can really racer down the highway.”