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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
Greer’s remarks will buoy officials in Ottawa and Mexico City, who are gearing up for next year’s high-stakes review of the USMCA, at which point signatories may withdraw.
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Jeronimo Gonzalez, semafor.com, 19 Dec. 2025
Austria, Ireland, and Malta have already joined the TPNW, which has 96 other signatories, and local governments in Berlin, Paris, and Rome have passed resolutions calling on their governments to do the same.
—Siegfried Hecker, Foreign Affairs, 16 Dec. 2025
Ineke Zeldenrust, international coordinator for the Clean Clothes Campaign, a witness signatory of the Accord, has long nursed a sense of foreboding about where worker safety is headed in Bangladesh.
—Jasmin Malik Chua, Sourcing Journal, 15 Dec. 2025
An online petition gathered more than 100,000 signatories, while celebrity fans including Wil Wheaton, George RR Martin, and Patton Oswalt voiced their support.
—Richard Edwards, Space.com, 14 Dec. 2025
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Jeronimo Gonzalez, semafor.com, 19 Dec. 2025
Austria, Ireland, and Malta have already joined the TPNW, which has 96 other signatories, and local governments in Berlin, Paris, and Rome have passed resolutions calling on their governments to do the same.
—Siegfried Hecker, Foreign Affairs, 16 Dec. 2025
Ineke Zeldenrust, international coordinator for the Clean Clothes Campaign, a witness signatory of the Accord, has long nursed a sense of foreboding about where worker safety is headed in Bangladesh.
—Jasmin Malik Chua, Sourcing Journal, 15 Dec. 2025
An online petition gathered more than 100,000 signatories, while celebrity fans including Wil Wheaton, George RR Martin, and Patton Oswalt voiced their support.
—Richard Edwards, Space.com, 14 Dec. 2025
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 Dec. 2025.
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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