IPA: /trænzˈnæʃənl/
KK: /trænzˈnæʃənl/
Relating to or involving multiple countries or nations, often in a way that crosses national borders.
Many transnational companies operate in several countries around the world.
Transnational → It is formed from "trans-" (meaning across) and "national" (from Latin "natio", meaning nation or people). The word describes something that extends or operates across national boundaries.
Think of something that goes 'across' ('trans-') different 'nations' — that's why transnational refers to activities or entities that span multiple countries.