The spelling of the surname "Markovich" can be explained using the International Phonetic Alphabet (IPA). The first syllable "Mar" is pronounced as /mɑːr/ with a long "a" sound. The second syllable "ko" is pronounced as /kəʊ/ with a long "o" sound. The final syllable "vich" is pronounced as /vɪtʃ/ with the stress on the second syllable and a "ch" sound. Therefore, the correct spelling of this name is "Markovich" and is pronounced as /mɑːrˈkəʊvɪtʃ/.