Here's why:
* Global Usage: It's spoken by over 1.5 billion people worldwide, making it the most spoken language in terms of native speakers.
* International Communication: English is the primary language used in international business, diplomacy, science, and the media.
* Education: It's often the language of instruction in universities and schools around the world.
* Internet: The majority of content on the internet is in English.
While other languages have regional importance (like Mandarin in Asia or Spanish in Latin America), English holds the mantle of "international language" due to its widespread usage and influence across the globe.