The spelling of the word "monsen" is quite straightforward when using the International Phonetic Alphabet (IPA). The word consists of two syllables, with the first syllable being pronounced as /mɒn/ and the second syllable pronounced as /sən/. The "m" in the first syllable is clearly pronounced before the "o", which is pronounced with a short "o" sound as in "hot". The "e" in the second syllable is silent, and the final "n" is pronounced with an "n" sound as in "never".