1. (股票、外汇或商品）经纪人，代理商
A broker is a person whose job is to buy and sell shares, foreign money, or goods for other people.

2. （国家或政府作为中间人）协调，安排
If a country or government brokers an agreement, a ceasefire, or a round of talks, they try to negotiate or arrange it.

1. a businessman who buys or sells for another in exchange for a commission

Synonym: agentfactor