Real Dictionary

United Nations
an international organization of independent states, with its headquarters in New York City, that was formed in 1945 to promote peace and international cooperation and security
an international organization of nations pledged to promote world peace and security, maintain treaty obligations & the observance of international law, & cooperate in furthering social progress: the organization was formed in San Francisco in 1945 under
noun: an international organization, with headquarters in New York City, formed to promote international peace, security, and cooperation under the terms of the charter signed by 51 founding countries in San Francisco in 1945
proper noun: The United Nations is an organization which most countries belong to. Its role is to encourage international peace, co-operation, and friendship.