Oxford Dictionary English high wire noun noun BrE BrE//ˌhaɪ ˈwaɪə(r)// ; NAmE NAmE//ˌhaɪ ˈwaɪər// [usually singular] Add to my wordlistjump to other resultsa rope or wire that is stretched high above the ground, and used by circus performers synonym tightropeSee high wire in the Oxford Advanced American DictionaryCheck pronunciation: high wire oxfordlearnersdictionaries.com