1. an extremely large multinational corporation with vast resources, influence, and market dominance across multiple industries
Usage: often used in business and economics contexts; sometimes used in science fiction to describe fictional corporations with enormous power

Examples

• The megacorporation controlled supply chains across three continents.
• Critics worry that megacorporations have too much influence over government policy.
• In the novel, megacorporations replaced traditional governments in the future.
• The merger created a megacorporation with a market value exceeding one trillion dollars.
• Megacorporations often lobby for favorable trade agreements.
• Environmental groups protest against megacorporations that prioritize profits over sustainability.