introduer
An introducer is a person or thing that makes something known for the first time. This can apply in various contexts. In a social setting, an introducer might facilitate a meeting between two or more people, explaining who they are and perhaps their shared interests to break the ice. This can be done verbally or through written communication. In business, an introducer might be a broker or agent who connects clients with services or products, often receiving a commission for their efforts. The role of an introducer is to bridge a gap and facilitate a connection.
The term "introducer" can also refer to the first part of a piece of work, such as