confederation confederation /kənˌfɛdɝˈeɪʃən/

noun

1. The act of forming an alliance or confederation  ( alliance , confederation )
   the act of forming an alliance or confederation
   
2. A union of political organizations  ( confederation , federation , confederacy )
   a union of political organizations
   
3. The state of being allied or confederated  ( alliance , confederation )
   the state of being allied or confederated