The spelling of the word "MPAB OC" is quite unique and may be confusing to those unfamiliar with its pronunciation. Its phonetic transcription is /ˈɛm piː eɪ biː oʊ siː/. The word is made up of the letters M, P, A, B, O, and C, with the addition of an elongated 'S' sound at the end. Breaking it down further, the letters can be interpreted as "Em-Pee-Ay-Bee-Oh-See" with the elongated 'S' sound representing the acronymic finality of the word.