What does the Latin word Pluribus Unum mean?

The Latin phrase Pluribus Unum means "One out of many" or "One from many". It is the motto of the United States and it appears on the Great Seal. It was first used in the 1782 design of the Great Seal by Secretary of Congress Charles Thomson, and was adopted by Congress on June 20, 1782. It was chosen to embody the unity of the several states of the United States under one central government.