GRE

arboretum - place where different varieties of trees and shrubs are studied and exhibited

arcade - a covered passageway, usually lined with shops

arcane - secret; mysterious

archaeology - study of artifacts and relics of early mankind

archaic - antiquated :: old primitive outdated antiquated outmoded out-of-date

archetype - prototype; primitive pattern

archipelago - group of closely located islands

archives - public records; place where public records are kept

ardor - heat; passion; zeal :: intensity

arduous - hard; strenuous :: difficult demanding exacting formidable laborious severe toilsome

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