The spelling of the word "blumer" can be explained using the International Phonetic Alphabet (IPA). The first syllable is pronounced as "blu-" with the "u" sound pronounced as "oo." The "m" at the end of the syllable is pronounced with a nasal sound. The second syllable is pronounced as "-mer," with the "e" making a short "eh" sound and the "r" being pronounced smoothly. Overall, the correct spelling of "blumer" using the IPA would be /ˈbluːmər/.