The word "agent tab" is spelled using the International Phonetic Alphabet as /ˈeɪ.dʒənt tæb/. The first syllable, "agent," is pronounced with a long "a" sound and a "j" sound in the middle, while the second syllable, "tab," is pronounced with a short "a" sound and a "b" sound at the end. This combination of sounds represents the English word for a tool used to highlight or flag important information within a digital document, commonly found in software interfaces and internet browsers.