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Webster 1913 Edition

Noun.

The business or employment of a broker.

Burke.

The fee, reward, or commission, given or changed for transacting business as a broker.

Noun.

The fee, reward or commission given or charged for transacting business as a broker.

brokerage ‎(plural brokerages)

A business, firm, or company whose business is to act as a broker (e.g, stockbroker).
The commission paid to a broker.

company whose business is to act as a broker

the commission paid to a broker