speedway
n. countable B2 Upper Intermediate US //ˈspidˌweɪ// UK //spˈiːdweɪ// speed·way
n. a special track used for racing cars or motorcycles. It is usually shaped like an oval and has a hard surface.
n. a track specifically designed for high-speed motor racing, typically oval in shape and featuring banked curves.
The cars race around the speedway at high speeds.
Thousands of fans gathered at the local speedway to watch the final motorcycle race of the season.
The construction of the new international speedway revitalized the region's economy by attracting major automotive sponsors and hosting high-profile endurance events throughout the summer months.
Usage
In American English, it often refers to a major highway or a large racing facility; in British English, it specifically refers to motorcycle racing on dirt tracks.