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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Acemoglu’s presence among the signatories is significant because the prominent MIT economist had previously voiced skepticism that AI would have profound economic impacts.—
Jeremy Kahn,
Fortune,
14 July 2026 Other signatories include former President Obama’s chief economist and current Harvard professor, Jason Furman, Anthropic cofounder Jack Clark, and top AI researcher Yoshua Bengio.—
Victoria Baeza Garcia,
The Washington Examiner,
13 July 2026 Australia, which is a signatory country, refuses to sell uranium to non-signatories.—ABC News,
9 July 2026 China ratified the protocols in 1987, pledging not to test nuclear weapons within the zone or threaten to use them against signatories with territory in the region.—
Huizhong Wu,
Los Angeles Times,
8 July 2026 See All Example Sentences for signatory