noun
bloc
BLAHK/blɑːk/
A group united to act toward a common goal.
The three parties form a voting bloc to oppose the proposal.

Etymology
French bloc connects a group with a solid block. In the political sense, the image is of separate people or nations forming one unit and acting together.
In context
a bloc had to have at least 5 people in it in order to vote.
More examples
- The trade bloc negotiated a common policy.
- Several regional blocs competed for influence.
- The delegates acted as a united bloc.
Forms
bloc · blocs