arbiter UK /ˈɑː.bɪ.tə(ɹ)/US /ˈɑɹ.bɪ.tɚ/noun 4verb 1forms 3 noun4 •A person appointed, or chosen, by parties to determine a controversy between them; an arbitrator.In order to protect individual liberty there must be an arbiter between the governing powers and the governed. — 1931 •A person or object having the power of judging, determining, or ordaining; one whose power of deciding and governing is not limited.Television and film, not Vogue and similar magazines, are the arbiters of fashion. •The person who oversees a chess match and ensures the rules are followed.The arbiter shall use his best judgement when determining the times to be shown on the replacement chess clock. — 2014 •A component in circuitry that allocates scarce resources. verb1 •To act as an arbiter. formsarbitered · arbitering · arbiters