worldwide UK /ˈwɜːldˌwaɪd/US /ˈwɝldˌwaɪd/adjective 1adverb 1forms 2 adjective1 •Spanning the world; global.A large meteorite impact would cause worldwide extinction of life. adverb1 •Throughout the world.The character of James Bond is known worldwide.English is spoken worldwide. formsmore worldwide · most worldwide