Bound by signed agreement: the signatory parties to a contract. (adjective)
One that has signed a treaty or other document.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "signatory" in a sentence
"Another signatory is the screenwriter Billy Ivory, who has adapted Lawrence's Women in Love for a BBC series this autumn."
"But I would urge the government of Canada to withdraw as a signatory from a Treaty which they do not intend to honour."
"For GMT, the signatory was the president of the company, a former beauty queen and airline stewardess and conservative talk show hostess by the name of Barbara Studley, while a number of top officers and officials signed for Israel."