Worldwide/ˌwɜːrldˈwaɪd/ Definition 1 of 2Pro Tip 1/3Not Limited Indicates an entity or phenomenon isn't confined to any one region or country. This environmental issue has become a worldwide concern. Pro Tip 2/3Cultural Impact Highlights a cultural phenomenon's reach across international borders. Sushi has gained worldwide popularity. Pro Tip 3/3Business Expansion Refers to companies operating in multiple countries around the globe. The brand plans to expand its worldwide presence.