Coalition (noun)

1. A temporary alliance of political parties, interest groups or individuals for a specific purpose or joint action.
2. The combination of different elements into a single group or entity.

Origin:

The word "coalition" comes from the latin word "coalitio" which means "a coming together". it was first used in the late 16th century in politics to refer to a union of parties or interests.

Examples:

1. The coalition government was formed to address the economic crisis.
2. The coalition forces were successful in overthrowing the dictator.
3. The environmental groups formed a coalition to protest against the construction of the dam.
4. A coalition of countries is needed to tackle the issue of global warming.
5. The coalition of opposition parties was able to win the election.