intermediary
noun /ˌɪntəˈmiːdiəri/
  /ˌɪntərˈmiːdieri/
 (plural intermediaries)
- intermediary (between A and B) a person or an organization that helps other people or organizations to make an agreement by being a means of communication between them synonym mediator, go-between
- Financial institutions act as intermediaries between lenders and borrowers.
 - All talks have so far been conducted through an intermediary.
 
Extra ExamplesTopics Discussion and agreementc2- She agreed to act as intermediary between the two tribes.
 - The product is then sold to the end-user via an intermediary.
 - They were approached indirectly through an intermediary.
 
Oxford Collocations Dictionaryadjective- financial
 
- act as
 
- through an intermediary
 - via an intermediary
 - intermediary between
 - …
 
Word Originlate 18th cent.: from French intermédiaire, from Italian intermediario, from Latin intermedius, from inter- ‘between’ + medius ‘middle’.