Oxford Dictionary English baseball cap nounnoun BrE BrE//ˈbeɪsbɔːl kæp// ; NAmE NAmE//ˈbeɪsbɔːl kæp// Baseball Add to my wordlistjump to other results enlarge image a cap with a long peak (= a curved part sticking out in front), originally worn by baseball players See related entries: BaseballSee baseball cap in the Oxford Advanced American DictionaryCheck pronunciation: baseball cap oxfordlearnersdictionaries.com