racer

/ˈreɪsər/
noun
  1. A person, animal, or vehicle that takes part in a race or competition of speed.
    • The young racer crossed the finish line first and won the trophy.
    • My dog is a fast racer at the local greyhound competitions.
    • That car is a professional racer built for high-speed tracks.
  2. A type of snake, especially a fast-moving, nonvenomous snake found in North America.
    • We saw a black racer slither quickly across the hiking trail.
    • A racer can often be found in fields and open woodlands hunting for rodents.
    • The racer snake is known for its speed and ability to climb trees.
  3. A bicycle designed for speed, typically with lightweight frame and narrow tires.
    • Her racer has carbon fiber wheels to reduce weight.
    • He bought a new racer for his weekend cycling club rides.
    • Racers are built for speed, not for carrying heavy loads.