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We are the world's largest and most comprehensive directory and search engine for acronyms, abbreviations and initialisms on the Internet. Abbreviations.com holds hundreds of thousands of entries organized by a large variety of categories from computing and the Web to governmental, medicine and business and it is maintained and expanded by a large community of passionate editors.

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URCA
Upper Room Christian Academy
UPA
University Preparatory Academy
UNN
University of Nigeria, Nsukka
WABT
World Academy of Biomedical Technologies
VISRA
Vanderbilt International Summer Research Academy