alliance in WordNet English dictionary

1. an organization of people (or countries) involved in a pact or treaty
   alliance  coalition  alignment  alinement 
   
2. the act of forming an alliance or confederation
   confederation  alliance 
   
3. a formal agreement establishing an association or alliance between nations or other groups to achieve a particular aim
   alliance 
   
4. a connection based on kinship or marriage or common interest
   "the shifting alliances within a large family"; "their friendship constitutes a powerful bond between them"
   alliance  bond 
   
5. the state of being allied or confederated
   alliance  confederation