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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 signatories request that Latino actors be hired for a diverse range of roles, including non-stereotypical leads.
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Andrea Flores, Los Angeles Times, 30 Jan. 2026
As of Tuesday, following the killing of Pretti, the letter has more than 450 signatories, including employees from Google, Amazon and TikTok.
—Andrew R. Chow, Time, 27 Jan. 2026
Lord Chris Smith and Dame Karen Bradley, two former culture secretaries, were among the 18 signatories.
—Jake Kanter, Deadline, 27 Jan. 2026
As of Monday, the petition has more than 400 signatories from the industry — many from Google, Meta and Amazon.
—Lola Murti,jennifer Elias, CNBC, 26 Jan. 2026
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Andrea Flores, Los Angeles Times, 30 Jan. 2026
As of Tuesday, following the killing of Pretti, the letter has more than 450 signatories, including employees from Google, Amazon and TikTok.
—Andrew R. Chow, Time, 27 Jan. 2026
Lord Chris Smith and Dame Karen Bradley, two former culture secretaries, were among the 18 signatories.
—Jake Kanter, Deadline, 27 Jan. 2026
As of Monday, the petition has more than 400 signatories from the industry — many from Google, Meta and Amazon.
—Lola Murti,jennifer Elias, CNBC, 26 Jan. 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 3 Feb. 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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