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 (at the request of both sides)

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

heat; passion; zeal; ADJ. ardent

arduous

hard; strenuous; Ex. arduous work

argot

slang; speech spoken by only a small group of people

aria

operatic solo; a song sung by one person in an opera or oratorio

arid

(of land) dry; barren; unproductive