1. (尤指为商业或政治目的而组成的)联盟，同盟,联合会
A confederation is an organization or group consisting of smaller groups or states, especially one that exists for business or political purposes.

1. the act of forming an alliance or confederation

Synonym: alliance

2. a union of political organizations

Synonym: confederacyfederation

3. the state of being allied or confederated

Synonym: alliance