The word "McCommon" is a surname that is pronounced /məˈkɑmən/. The "Mc" at the beginning of the word is a common prefix used in Scottish and Irish surnames, meaning "son of". The "a" in "MaC" is often pronounced as "uh" in American English, followed by a stressed syllable - "KOM-uhn". The spelling of the word is therefore consistent with the spelling conventions for Irish and Scottish names, and the IPA transcription helps to understand the pronunciation of the word.