intermediary
n.a person or organization that acts as a link between two groups. You use this when two sides cannot or will not talk to each other directly.
n.a person or entity acting as a mediator or link between two parties, typically to facilitate communication or negotiation. Often implies a neutral or professional role in resolving disputes or managing transactions.
“The lawyer acted as an intermediary between the two families.”
“The bank serves as a financial intermediary, moving money from savers to borrowers in a secure way.”
“Diplomatic efforts stalled until a neutral third-party state agreed to serve as an intermediary, allowing the warring factions to exchange terms without meeting face-to-face.”
Commonly used with the verbs 'act as', 'serve as', or 'function as'.
“George I , who reigned between 1714 and 1727, preferred his native Hanover to his new dominion and had relied heavily on interpreters and intermediaries throughout his reign.”
“It’s known that the Incas practiced a human sacrifice ritual known as Capachoca, in which children were offered to the mountains and believed to become divine themselves, serving as intermediaries with the gods.”
From French intermédiaire, adjusted to simulate a borrowing from Medieval Latin *intermediārius.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.