Definitions:

1. A course over which races are run. NOUN
   • The thunderous roar of the crowd reverberated throughout the racecourse, adding to the excitement of the race.
2. A designated track or venue where horse races and other types of racing events, such as automobile races are held. NOUN
   • The crowds gathered at the racecourse to watch the annual horse racing event.
3. A large outdoor facility or track designed and used for racing sports, usually consisting of a flat or mildly sloped oval circuit of a specified length, along with grandstands for spectators, and other related amenities. NOUN
   • The grandstands were packed with eager spectators, their cheers echoing through the racecourse.

Synonyms:

• circuit
• course
• racetrack
• raceway
• track