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matchmaker
go-between; intermediary; middleman; mediator; intercessor
昔は媒人を立てて結婚の話を進めるのが普通だった。
In the past, it was common to use a matchmaker to arrange marriages.
二人を引き合わせた媒人に感謝の手紙を送った。
I sent a thank-you letter to the matchmaker who introduced us.
地域の名士が媒人として何組もの縁を結んだ。
A local notable brought together many couples as a matchmaker.