especially: a government bound with others by a signed convention
signatoryadjective
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A signatory puts his or her signature on a document that is also signed by others. In 1215 the English barons revolted against King John and forced him to join them as a signatory to the Magna Carta. This agreement stated the barons' own duties to the King but also assigned the barons clear rights and limited the King's power over them. Though the Magna Carta did nothing for the common people, it's often been called the first step toward democracy in the English-speaking countries.
Examples of signatory in a Sentence
a signatory of the Declaration of Independence
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Its signatories include Anthropic co-founder Jack Clark and Eric Schmidt, Google’s former chief executive.—
Sebastian Herrera,
Fortune,
8 Aug. 2026 An online petition calling for the show to be canceled has been launched and so far has more than 4,400 signatories.—ABC News,
6 Aug. 2026 The signatories are asking Washington to help build the steering wheel before the engine hits recursive gear — to make the option to slow down viable so that no single lab or country has to unilaterally sacrifice competitive ground to exercise it.—
Anisha Sircar,
Forbes.com,
30 July 2026 One of the signatories, Food Not Cops Burlington, posted and then deleted a boycott map targeting the business owners.—
Michael Powell,
The Atlantic,
30 July 2026 See All Example Sentences for signatory