The spelling of the word "Milrels" can be explained through its phonetic transcription in the International Phonetic Alphabet (IPA). The first syllable "Mil" is pronounced as /mɪl/, with the "i" pronounced as the short "I" sound. The second syllable "rels" is pronounced as /rɛlz/, with the "e" pronounced as the short "E" sound and the "ls" pronounced as the "LZ" sound. Together, the word "Milrels" is pronounced as /ˈmɪl.rɛlz/.