the principal seal of a government or state.
(initial capital letters) British.
- the Lord Chancellor, keeper of the principal seal of Great Britain.
- his office.
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- great sanhedrin,
- great saphenous vein,
- great satan,
- great schism,
- great scott,
- great shakes,
- great skua,
- great slave lake,
- great slave river,
- great smoky mountains
Origin of great seal
Middle English word dating back to 1350–1400
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(often capitals) the principal seal of a nation, sovereign, etc, used to authenticate signatures and documents of the highest importance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012