noun / adjective

intermediary

in-ter-MEE-dee-air-ee/ˌɪntərˈmiːdieri/

Something that connects two otherwise separate stages or parties.

The intermediary passes the buyer's payment to the seller.

A centrally positioned intermediary facilitates a visible exchange between a buyer and a seller: he passes the buyer's payment to the seller while handing the seller's ceramic vase to the buyer.
Etymology

The pieces describe a position in the middle, between other things. That spatial idea became a social role: an intermediary acts between other parties as a mediator.

In context

Kelley International22:11
… the intermediary in a conflict shuttles backwards and forwards repeatedly between the parties
The Evolution of Modern Diplomacy

More examples

  • We communicate with the owner through an intermediary.
  • The nonprofit acts as an intermediary between donors and schools.
  • The material passes through an intermediary stage before becoming a finished product.

Forms

intermediary · intermediaries

Similar words

mediator
Helps parties resolve disagreements, not merely exchange information.
broker
Usually arranges business deals rather than linking process stages.
intermediate
Describes a middle stage without necessarily connecting separate parties.