The spelling of the word "Acromis" can be explained using the International Phonetic Alphabet (IPA) as follows: /əˈkroʊmɪs/. The first syllable, "a" is pronounced as the schwa sound. The second syllable, "cro" is pronounced with a long "o" sound and the stress on the first syllable. The final syllable, "mis," includes the short "i" sound, followed by the "s" sound. The spelling of the word is consistent with its pronunciation under this system.