a group of countries in special alliance

a coalition of people, groups or nations with the same purpose or goal

a group of countries or political parties with a common aim

a group of nations that have common interests whether they are economic, defense, ethnicity, etc

A group of markets with strong geographic or currency similarities. Global bond markets can be divided into the European Bloc, the Dollar Bloc and the Yen Bloc.

a group of people with the same interest or goal (usually used to describe a voting bloc, a group of representatives intending to vote the same way).