arbiter person with power to decide a matter in dispute; judge who is in a position ot make influential judgments; Ex. supreme arbiter of fashion in beachware arbitrary unreasonable or capricious; random; tyrannical; Ex. arbitrary ruler arbitrate act as judge arboreal of or living in trees arboretum place where different trees and shrubs are studied and exhibited arcade a covered passageway usually lined with shops arcane esoteric; secret; mysterious; known only to the initiated; Ex. arcane ritual; Ex. arcane process closed to the uninitiated listener arch- chief; first; Ex. archbishop archaeology study of artifacts and relics of early mankind archaic antiquated; no longer used; belonging to the past; N. archetype prototype; primitive pattern archipelago group of closely located islands archives public records; place where public records are kept ardor |