A nation is a large political unit, typically composed of several states or countries, with its own government and culture. The term 'nation' can refer to a COMMONWEALTH, which is a group of nations or states that are united by a common goal or purpose. A POPULACE is the PEOPLE of a nation, while a FOLK is a group of PEOPLE sharing a common culture. A KINGDOM is a STATE or COUNTRY ruled by a monarch, while a MONARCHY is a form of government in which a single person holds the power. POPULATION refers to the total number of PEOPLE living in a nation, while a REPUBLIC is a STATE in which the supreme power rests in the body of citizens entitled to vote. An EMPIRE is a large political unit, typically composed of several countries, ruled by an emperor or empress. A REALM is a region or DOMAIN over which a sovereign rules, while a RACE is a group of PEOPLE sharing common physical characteristics. DOMINION is the power or right of governing and controlling a COUNTRY, while a TRIBE is a social division in a traditional society consisting of families or communities linked by social, economic, religious, or blood ties. LAND is the physical area of a nation, while PEOPLE refer to the inhabitants of a nation. A COUNTRY is a nation with its own government, and a STATE is a political division of a nation.