This page is available in

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.


Do you have feedback on the definitions or the terms? Send us an email to:


  • Registry Transition ProcessRTP

    The formal process that ICANN follows when a contracted registry operator (RO) is replaced. ICANN uses the RTP when an RO terminates its Registry Agreement and a new RO takes over. It also uses the RTP in cases where an RO changes its name or is acquired by another company.