/ˈtriːti/ – noun
Definition: 1. hiệp ước;
2. sự thỏa thuận, việc thương lượng.
A more thorough explanation: A treaty is a formal and legally binding agreement between two or more sovereign states or international organizations, typically regarding peace, trade, alliances, or other matters of mutual interest. Treaties are negotiated and signed by authorized representatives of the parties involved and are subject to ratification and implementation according to the respective domestic legal procedures of each party.
Example: The two countries signed a treaty outlining the terms of their trade agreement.