1.
freestyle (swimming event)
A competitive swimming event where swimmers may use any stroke, though the front crawl is universally used due to its speed. Races are held at distances of 50m, 100m, 200m, 400m, 800m, and 1500m.
Usage
Commonly heard during swimming competitions and the Olympics. In practice, all swimmers use the front crawl (クロール) in freestyle events because it is the fastest stroke.