The spelling of the word "mosco" may seem unusual, but it is in fact a valid spelling of the word "Moscow." The IPA phonetic transcription of the word is /ˈmɒskəʊ/, where the stress is on the first syllable. The "sco" at the end of the word is a common shorthand for the "-cow" sound in English, often used in informal or colloquial contexts. However, it is important to use the correct spelling and pronunciation when communicating formally or in writing.