signatory

noun

sig·​na·​to·​ry ˈsig-nə-ˌtȯr-ē How to pronounce signatory (audio)
plural signatories
: a signer with another or others
signatories to a petition
especially : a government bound with others by a signed convention
signatory adjective

Did you know?

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Launched on the opening night with some 600 signatories, including Juliette Binoche and Palme d’Or contenders Arthur Harari and Bertrand Mandico, the letter took aim at Canal+ Group’s recent acquisition of a 34% stake in French major UGC, with an option to buy it outright. Max Goldbart, Deadline, 22 May 2026 The petition signatories want to raise the alarm over the unprecedented influence Bolloré is gaining over the French film industry. Scott Roxborough, HollywoodReporter, 22 May 2026 The agreement between the airport and the signatory airlines began on July 1, 2016, and runs through June 30. Dj Simmons, Charlotte Observer, 22 May 2026 The United States, along with 184 other governments, is a signatory to the treaty, which restricts international wildlife sales without permits, with the aim of supporting sustainable trade. Moná Thomas, PEOPLE, 21 May 2026 See All Example Sentences for signatory

Word History

Etymology

Latin signatorius of sealing, from signare

First Known Use

1826, in the meaning defined above

Time Traveler
The first known use of signatory was in 1826

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Cite this Entry

“Signatory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/signatory. Accessed 31 May. 2026.

Legal Definition

signatory

noun
sig·​na·​to·​ry ˈsig-nə-ˌtōr-ē How to pronounce signatory (audio)
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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