Internationalization refers to the process of expanding a company's operations and business activities beyond its domestic borders to enable it to operate in multiple countries around the world. This can involve setting up international offices, entering new markets, establishing partnerships with foreign companies, or manufacturing products in different countries. Internationalization is often pursued by businesses looking to grow, increase their market share, and diversify their revenue streams. It requires careful planning, market research, and an understanding of the cultural, legal, and economic differences between countries.