See sweat suit for more sweat·suitBrE /ˈswetsuːt/ 🔊, also /ˈswetsjuːt/ 🔊NAmE /ˈswetsuːt/ 🔊 noun (also informal sweats [plural] ) (both NAmE) a sweatshirt and sweatpants worn together, for relaxing or playing sports in (长袖)运动套装