1. (n.) The act of mediating; action or relation of anything interposed; action as a necessary condition, means, or instrument; interposition; intervention.

2. (a.) Hence, specifically, agency between parties at variance, with a view to reconcile them; entreaty for another; intercession.

United Nations troops agency appeasement calming conciliation detente device dulcification easing of relations expedient going between instrumentality intermediation machinery mechanism mollification pacification peace-keeping force peacemaking peacemongering placability placation propitiation recourse relaxation of tension resort service soothing tranquilization