also: ちゅうにん
noun
Specifically a person who arranges marriages, traditionally a formal role in Japanese omiai. The reading is almost always なこうど.
彼女の両親は仲人に紹介を頼んだ。
Her parents asked a matchmaker to introduce someone.
結婚式で仲人がスピーチをし
The matchmaker gave a speech at the wedding.
noun
go-between; intermediary; middleman
A person who acts as an intermediary in negotiations, business, or disputes, not limited to marriage. The reading ちゅうにん is sometimes used for this broader sense, but なこうど is also possible.
商談では仲人が間に入って話をまとめた。
In the business negotiation, a go-between stepped in and brought the deal together.
彼は労使間の仲人として信頼されている。
He is trusted as a mediator between labor and management.