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Definitions

signatory

[sig-nuh-tawr-ee, -tohr-ee] / ˈsɪg nəˌtɔr i, -ˌtoʊr i /


NOUN
signer
Synonyms


NOUN
undersigned
Synonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Iran is also a signatory to the Nuclear Non-Proliferation Treaty, which makes the same pledge.

From Slate • Feb. 27, 2026

TAP Portugal had sent a copy of one of Zamora’s certificates to CFM International who wrote back declaring that the signatory on the document wasn’t an employee.

From The Wall Street Journal • Feb. 23, 2026

"The problem with that arrest is that it violates the UN Charter," she added, noting the United States is a signatory of the United Nations' founding document.

From Barron's • Jan. 4, 2026

Every signatory agreed to submit a new carbon-cutting plan every five years, which would cover the next decade.

From BBC • Oct. 28, 2025

On the morning of March 7, thirty thousand German troops had rolled into the demilitarized Rhineland, in open defiance of both the Treaty of Versailles and the Locarno Pact to which Germany was a signatory.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown