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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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CSS
Civil Superior Service
FIA
Federal Intelligence Agency
DGMO
Director General of Military Operations
FBISE
Federal Board of Intermediate and Secondary Education
CTBT
Computerized Test Ban Treaty