mediator

UK: /ˈmiːdɪeɪtə^r/ US: (mē′dē ā′tər)

WordReference Random House Unabridged Dictionary of American English © 2025

me•di•a•tor  (mē′dē ā′tər), n. 

1. a person who mediates, esp. between parties at variance.

• Late Latin, as above
• Anglo-French
• Late Latin (see mediate, -tor); replacing Middle English mediatour
• 1250–1300

me′di•a′tor•ship′, n. 

WordReference Random House Learner's Dictionary of American English © 2025

me•di•ate /ˈmidiˌeɪt/   v., -at•ed, -at•ing. 

1. to attempt to settle (a dispute) between two opposing sides: [no object]
   The UN president agreed to mediate.
   [~ + object]
   She agreed to mediate the dispute.
2. to bring about a solution between two opposing sides:
   [~ + object] to mediate a settlement.

me•di•a•tion /ˌmidiˈeɪʃən/  n. 

[uncountable] trained in diplomatic mediation.

me•di•a•tor, n. [countable]

: experienced mediators.

See -medi-.

WordReference Random House Unabridged Dictionary of American English © 2025

me•di•ate  (v. mē′dē āt′;adj. mē′dē it), v., -at•ed, -at•ing, adj. 
v.t. 

1. to settle (disputes, strikes, etc.) as an intermediary between parties;
   reconcile.
2. to bring about (an agreement, accord, truce, peace, etc.) as an intermediary between parties by compromise, reconciliation, removal of misunderstanding, etc.
3. to effect (a result) or convey (a message, gift, etc.) by or as if by an intermediary.

v.i. 

4. to act between parties to effect an agreement, compromise, reconciliation, etc.
5. to occupy an intermediate place or position.

adj. 

6. acting through, dependent on, or involving an intermediate agency;
   not direct or immediate.

• Late Latin mediātus, past participle of mediāre to be in the middle, intercede. See medium, -ate¹
• late Middle English 1375–1425

me′di•ate•ly, adv. 
me′di•ate•ness, n. 
Synonyms

• 1, 2. arbitrate.
• 4. intercede, interpose.