Oxford Dictionary English white horses nounnoun BrE BrE//ˌwaɪt ˈhɔːsɪz// ; NAmE NAmE//ˌwaɪt ˈhɔːrsɪz// (British English) (North American English whitecaps) [plural] Add to my wordlistjump to other resultswaves in the sea or ocean with white tops on themCheck pronunciation: white horses oxfordlearnersdictionaries.com