triumvirate (noun)

1. Why did the triumvirate start a band? Because they wanted to be a power trio!

2. In a land ruled by a magical triumvirate, the fate of the kingdom was at stake.

3. The triumvirate of Julius Caesar, Pompey, and Crassus shaped the politics of ancient Rome.

4. The dark secret of the small town was that it was controlled by an evil triumvirate of supernatural beings.