1. great seal - Noun
2. Great seal - Proper noun
the principal seal of a government, symbolizing authority or sovereignty
Source: WordNetThere is no higher honor than to serve free men and women, no greater privilege than to labor in government beneath the Great Seal of the United States and the American flag. George H. W. Bush
European mysticism was not dead at the time the United States of America was founded. The hand of the mysteries controlled in the establishment of the new government for the signature of the mysteries may still be seen on the Great Seal of the United states of America. Manly Palmer Hall
"1782: Original Design of the Great Seal of the United States", Our Documents: 100 Milestone Documents from the National Archives. Source: Internet
As an interim measure, Edward II was held in the custody of Henry of Lancaster, who surrendered Edward's Great Seal to Isabella. Source: Internet
He asked for a quarter cask of wine in payment for designing the U.S. flag, the Great Seal of the United States, and various other contributions. Source: Internet
Hopkinson, however, did incorporate elements of the two flags he designed in his rough sketches of the Great Seal of the United States and his design for the Admiralty Board Seal. Source: Internet