A "nation" is a large group of people who share a common identity, often based on shared culture, language, history, or ethnicity. Nations can exist within a specific geographic area, and they often have their own government and political systems. The concept of a nation is closely related to the idea of a state, which is a political entity with defined borders and sovereignty.
Nations can vary in size and population, ranging from small communities to large countries. Some nations are recognized as independent states, while others may be part of larger political entities or may seek independence. The relationship between a nation and its citizens is fundamental, as citizens typically share a sense of belonging and loyalty to their nation.