The word "hyperintelligence" refers to an exceptionally high level of intelligence. It can be spelled phonetically as /haɪpərɪnˈtɛlɪdʒəns/. In this spelling, the "hyper" prefix is pronounced as "haɪpər", with a long "i" sound. The "intelligence" part of the word is pronounced as "ɪnˈtɛlɪdʒəns", with stress on the second syllable. The phonetic transcription helps to understand the pronunciation of the word and ensures the correct spelling is used when writing.