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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
Charles Walker, Henry Highland Garnet and Frederick Douglass (one of Stanton’s male co-signatories) were among the most well known.
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Brian Delay,
Mercury News,
4 July 2026
The status only covers ships whose companies are signatories of the International Bargaining Forum's labor agreements — around 15,000 vessels worldwide, according to the IBF.
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July 1,
CBS News,
1 July 2026
That notice went out through a password-secure disease news-sharing network run through the International Health Regulations, a treaty to which most countries — including the United States — are signatories.
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Helen Branswell,
STAT,
30 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,
29 June 2026
See All Example Sentences for signatory
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Brian Delay,
Mercury News,
4 July 2026
The status only covers ships whose companies are signatories of the International Bargaining Forum's labor agreements — around 15,000 vessels worldwide, according to the IBF.
—
July 1,
CBS News,
1 July 2026
That notice went out through a password-secure disease news-sharing network run through the International Health Regulations, a treaty to which most countries — including the United States — are signatories.
—
Helen Branswell,
STAT,
30 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,
29 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 6 Jul. 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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