Oxford Dictionary English white tie nounnoun BrE BrE//ˌwaɪt ˈtaɪ// ; NAmE NAmE//ˌwaɪt ˈtaɪ// Add to my wordlistjump to other results a man’s white bow tie, also used to mean very formal evening dress for men dressed in white tie and tailsCheck pronunciation: white tie oxfordlearnersdictionaries.com