DictionaryA•raPronunciation: (ā'ru, âr'u), [key] —n., —gen. A•raePronunciation: (ā'rē, âr'ē). [key] Astron. the Altar, a southern constellation between Triangulum Australe and Scorpius. ARAAgricultural Research Administration. A.R.A.1. American Railway Association. 2. Associate of the Royal Academy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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