The spelling of the word "McMurphy" can be explained using the International Phonetic Alphabet (IPA). The first syllable is "Mc," which is pronounced [mək]. The "M" sound is followed by a schwa, represented by the upside-down "e." The second syllable contains the "ur" sound, transcribed as [ɜr], followed by the "ph" sound, [f]. The final syllable ends with the "y" sound, represented by [i]. So, the pronunciation of "McMurphy" is [məkˈmɜrfi].