1. a person who uses influence and connections to arrange deals or agreements between other parties, especially in politics or business
Usage: often written as two words: power broker

Examples

• The senator was known as a powerbroker who could bring opposing parties together.
• She worked as a powerbroker in the entertainment industry for decades.
• The powerbroker arranged the merger between the two companies.
• Political powerbrokers met behind closed doors to discuss the legislation.
• He became a powerbroker by building relationships with key decision-makers.
• The powerbroker’s influence extended across multiple industries.