great seal

The great seal is defined as the official seal of a nation or state that is used to verify official documents.

(noun)

An example of the great seal is the stamp on a U.S. passport that makes it authentic.

See great seal in Webster's New World College Dictionary

the chief seal of a nation or state, with which official papers are stamped as proof of having been approved or certified

See great seal in American Heritage Dictionary 4

noun

The principal seal of a government or state, with which official documents are stamped.

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