agent (part of speech: noun)
deputy, middleman, impresario, actor, broker, intermediary, appointee, factor, delegate, instrument, operative, executor, representative, ombudsman, agent, liaison, emissary, lieutenant, agency, surrogate, substitute, proxy, vehicle, go-between, attorney, alternate, auxiliary, second
judge (part of speech: noun)
messenger (part of speech: noun)
fastener (part of speech: noun)
seal, cinch, binding, fastening, hitch, band, cotter, medium, pin, strap, bolt, chain, link, twine, thread, clasp, suture, splice, hawser, spike, skewer, belt, bonding, binder, grapnel, lock, tack, stay, glue, braid, guy, brace, cement, rabbet, latch, coupling, buckle, staple, nail, cincture, connector, hinge, ligament, bracket, vise, snap, closure, weld, string, bond, clip, mucilage, catch, clinch, hasp, stitch, lace, cleat, paste, brad, anchor, hook, fuse, zipper, tie, vinculum, rivet, fastener, clamp, knitting, button, knot
- I will accept the office of mediator." - "The Complete Historical Romances of Georg Ebers", Georg Ebers.
- He had always dimly expected Messianic miracles, but in that magic afternoon the plain words of the soldier unsealed his eyes, and suddenly he saw clearly that just as, in Israel, every man was his own priest, needing no mediator, so every man was his own Messiah. - "Dreamers of the Ghetto", I. Zangwill.
- King James, faithful to his self- imposed part of mediator- general, which he thought so well became him, had been busy in bringing about this pacification, and had considered it eminently successful. - "Project Gutenberg History of The Netherlands, 1555-1623, Complete", John Lothrop Motley.