Definition of high-speed adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌhaɪ ˈspiːd//
; NAmE NAmE//ˌhaɪ ˈspiːd//
[only before noun]
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that travels, works or happens very fast a high-speed train a high-speed car chaseExtra examples A police officer was injured during a high-speed chase across two counties. There should be a large market for cheap high-speed modems. We are talking about a network of modern highways, high-speed trains, airports and air routes.
See the Oxford Advanced American Dictionary entry: high-speed