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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.

Academic & Science

Amateur Radio, Architecture, Biology, Chemistry, Degrees, Electronics, Geology, IEEE, Mathematics, Mechanics, Meteorology, Ocean Science, Physics, Universities»

Business & Finance

Accounting, Firms, International Business, Mortgage, NASDAQ Symbols, NYSE Symbols, Occupations & Positions, Professional Organizations, Stock Exchange, Tax»

Community

Conferences, Educational, Famous, Film Censorship, Genealogy, Housing, Law, Media, Museums, Music, Non-Profit Organizations, Religion, Schools, Sports, Unions»

Computing

Assembly, Databases, DOS Commands, Drivers, File Extensions, General, Hardware, Java, Networking, Security, Software, Telecom, Texting, Unix Commands»

Governmental

FBI, FDA, Military, NASA, Police, State & Local, Suppliers, Transportation, UN, US Gov.»

Internet

ASCII, Blogs, Chat, Domain Names, Emoticons, HTTP, MIME, Twitter, Wannas, Websites»

Miscellaneous

Chess, Clothes, Coins, Construction, Days, Farming, Food, Funnies, Gaming, Hobbies, Months, Photography, Plastics, Sci-Fi, Unit Measures, Journal Abbreviations»

Regional

Airport Codes, African, Alaska, Australian, Canadian, Cities, Countries, Currencies, European, Language Codes, Railroads, Tel. Country Codes, Time Zones, US States»

Medical

British Medicine, Dental, Drugs, Hospitals, Human Genome, Laboratory, Medical Physics, Neurology, Nursing, Oncology, Physiology, Prescription, Veterinary»

International

Arabic, Dutch, German, Greek, Guatemalan, French, Hebrew, Indonesian, Italian, Latin, Mexican, Polish, Romanian, Russian, Spanish, Tamil, Thai, Turkish»

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    WYWW
    Work Your Way Wasaga
    RWP
    Real World Persona
    RWP
    Reduced Water Peak
    RWP
    Resilient Workforce Program
    RWP
    Real Wood Planks

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    PSU
    A Public sector UNdertaking
    B Problematic Smartphone Usage
    C Public Sector Uniform
    D Poorland State University

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