signatory

1. N-COUNT The signatories of an official document are the people, organizations, or countries that have signed it. 簽約人; 簽約組織; 簽約國(guó)[正式]

Both countries are signatories to the Nuclear Non-Proliferation Treaty. 兩個(gè)國(guó)家都是《防止核擴(kuò)散條約》的簽約國(guó)。