/kənˈfɛdərəsi/ – noun
Definition: 1. liên đoàn, liên minh, liên bang;
2. sự thông mưu, sự câu kết.
A more thorough explanation: A confederacy is a union or alliance of individuals, groups, or states for a common purpose or goal, typically involving a decentralized form of government where each member retains a degree of sovereignty while agreeing to cooperate on certain matters.
Example: The confederacy of states entered into a treaty to establish a common defense alliance.