How to say "mediation" in Japanese

Choosing the right word
  • 媒介ばいかいCommon
    noun, suru verb, transitive verbMediation in the sense of serving as a medium or intermediary between two sides, not of settling their dispute. For quarrel- or conflict-settling mediation, this is not the word you want.
  • 仲裁ちゅうさいCommon
    noun, suru verb, transitive verbMediation in the sense of stepping in to settle a quarrel or dispute between two parties, as when a third person intervenes to end an argument. The nuance is that of arbitrating the conflict.
    彼かれが仲裁ちゅうさいしてその場ばは丸まるく収おさめた。↗
    He intervened and settled the matter peacefully for the time being.
  • 調停ちょうていJLPT N1approx.Common
    suru verb, transitive verb, no-adjectiveMediation as a formal process of conciliation, in which a neutral third party helps disputing parties reach agreement; this is the term used in legal and labor dispute settings.
    彼かれは両りょう当事者とうじしゃの間あいだを調停ちょうていした。↗
    He mediated between the two parties.
  • 橋渡しはしわたしJLPT N1approx.Common
    noun, suru verb, intransitive verbFigurative 'bridge-building': mediation in the sense of linking two sides so that they can communicate or cooperate, as when a person or organization acts as go-between for countries or groups.
  • 口利きくちききCommon
    nounMediation through personal influence: someone with connections speaks to the right people behind the scenes to get things done; it also names such a person — really good offices or string-pulling, not formal mediation.

For settling disputes choose 仲裁 or 調停, the latter being the formal conciliation term; 媒介 is acting as a transmitting intermediary, 「橋渡し」 figuratively bridging two sides, and 「口利き」 intervention through personal influence.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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