The word "ASSISUS" is spelled with four letters - A, S, S, and U. In terms of phonetics, it can be transcribed as /əˈsɪsəs/. The first sound is a short unstressed vowel, pronounced as schwa (/ə/). The next sound is the consonant cluster of /s/ and /s/, followed by another short unstressed vowel (/ɪ/). The final sound is the consonant /s/ followed by an unstressed vowel once again (/ə/). Although this word may seem unusual, its spelling and pronunciation follow consistent patterns in English phonetics.