The word "BANNUM" is not a commonly known term, and its spelling can lead to confusion. The IPA transcription of this word is /ˈbænəm/. The first two letters "ban" are pronounced as the word "ban," with a short "a" sound. The second half "num" is pronounced with a short "u" sound, like "bum" with an "n" added. The spelling of "bannum" may appear incorrect, as the double "n" is not necessary in English. It is important to pay attention to spelling and pronunciation to avoid confusion when using words like "bannum."