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ICANN Acronyms and Terms

ICANN has hundreds of acronyms and terms, which can be confusing. We created this multilingual tool to help explain what these terms mean and facilitate your work within the ICANN community. Search for terms by name or acronym using the search bar, or search by letter. All acronyms and terms are available in Arabic, Chinese, French, Russian, and Spanish.


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  • International Organization for StandardizationISO

    An international nongovernmental organization that develops and publishes international standards that are voluntary and consensus-based. The Domain Name System uses the two-letter names defined in ISO 3166-1 as identifiers for country code top-level domains.