The word "IPSID" is a medical term that refers to a rare form of non-Hodgkin's lymphoma called immunoproliferative small intestine disease. In terms of spelling, "IPSID" is pronounced as /ɪpˈsɪd/, with the stress on the second syllable. The word is spelled with the letter "i" as the first and fourth letters, "p" as the second letter, "s" as the third letter, and "d" as the fifth letter. This spelling is consistent with the rules of English spelling and pronunciation.