noun
middleman; mediator; go-between
Refers to a person who acts as an intermediary in transactions, negotiations, or relationships.
彼は不動産取引で仲立人として働いている。
He works as a middleman in real estate transactions.
両者の間に入ってくれる仲立人を探している。
We are looking for a mediator who can step in between the two parties.
Compound of 仲立ち (nakadachi, 'mediation, intermediary') + 人 (nin, 'person'). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of a person who stands between parties.