GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 051 arboriculture (n) The cultivation of trees or shrubs arcade (n) A vaulted passageway or street; a roofed passageway having shops, etc., opening from it arcane (adj) obscure; secret archaeology (n) The branch of anthropology concerned with the systematic investigation of the relics of man archaic (adj) Antiquated archaism (n) Obsolescence archangel (n) An angel of high rank archbishop (n) The chief of the bishops of an ecclesiastical province in the Greek, Roman, and Anglican church