The spelling of the word "MOUNONG" can be explained using the International Phonetic Alphabet (IPA). The first sound is represented by the symbol /m/, which is a bilabial nasal consonant. The second sound is /u/, a high back rounded vowel. The third sound is /n/, another nasal consonant. The fourth sound is /ɔ/, a mid-back rounded vowel. The final sound is /ŋ/, a velar nasal consonant. So, MOUNONG is pronounced as /mʊnɔŋ/. In some dialects, it may be pronounced with a different vowel sound, such as /u/ or /o/.