"국내" refers to the domestic territory of a country, specifically South Korea in this context. It encompasses all regions, cities, and communities within the nation's borders. The term is often used in discussions about local policies, culture, and economy, distinguishing them from international matters. In South Korea, "국내" is significant in various sectors, including tourism, where it highlights attractions like 서울 and 부산. It also plays a role in business, as companies focus on the domestic market to cater to local consumers and meet their needs effectively.