/sɪɡˈnəˌtɔri/ – Noun
Definition: 1. người đã ký, nước đã ký (vào bản hiệp ước, hiệp định…);
2. giấy ủy quyền ký các văn bản.
A more thorough explanation: A signatory is a person or entity that has signed a document, such as a contract or agreement, thereby indicating their agreement to be bound by its terms and conditions.
Example: The signatory of the contract agreed to the terms and conditions outlined within the document.