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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
Recent Examples on the Web
The first was ‘Abrazados por el futbol‘ (Embraced by futbol), an anti-discrimination pledge that had Mexico stars Rafael Marquez, Javier Hernandez and Andres Guardado as early signatories.
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Jack Lang, New York Times, 11 June 2026
This router is also built with security in mind, as TP-Link is a signatory of the US Cybersecurity and Infrastructure Security Agency's Secure-by-Design pledge.
—George Yang, PC Magazine, 11 June 2026
The Giving Pledge is a commitment for ultrawealthy individuals to give away the majority of their wealth; other signatories include MacKenzie Scott, Warren Buffett, Mark Zuckerberg, and more.
—Sydney Lake, Fortune, 9 June 2026
The letter was published in Le Monde this afternoon and features signatories such as Natalie Portman, Jacques Audiard, and Justine Triet.
—Zac Ntim, Deadline, 9 June 2026
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Jack Lang, New York Times, 11 June 2026
This router is also built with security in mind, as TP-Link is a signatory of the US Cybersecurity and Infrastructure Security Agency's Secure-by-Design pledge.
—George Yang, PC Magazine, 11 June 2026
The Giving Pledge is a commitment for ultrawealthy individuals to give away the majority of their wealth; other signatories include MacKenzie Scott, Warren Buffett, Mark Zuckerberg, and more.
—Sydney Lake, Fortune, 9 June 2026
The letter was published in Le Monde this afternoon and features signatories such as Natalie Portman, Jacques Audiard, and Justine Triet.
—Zac Ntim, Deadline, 9 June 2026
See All Example Sentences for signatory
Cite this Entry
“Signatory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/signatory. Accessed 20 Jun. 2026.
Copy CitationLegal Definition
signatory
noun
sig·na·to·ry
ˈsig-nə-ˌtōr-ē 
plural signatories
: a signer with another or others
signatories to a petition
especially
: a government bound with others by a signed convention
signatory
adjective
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