The spelling of "mmckenna" may seem tricky at first glance, but it is actually quite straightforward when broken down phonetically. The word is pronounced as /əˈmækənə/ with a strong emphasis on the second syllable. The first syllable, "m", is pronounced with a schwa sound, while the second syllable, "ack", is pronounced with a short "a" sound. The final syllable, "ena", is pronounced with a weak schwa sound followed by a short "uh" sound. So, while the spelling may appear daunting, remembering the phonetic breakdown can make it easy to pronounce correctly.