noun
The word 'man' is a noun, referring to a male human being.
adjective
The term 'man-about-town' describes the type of man being referred to.
preposition
The hyphens in 'man-about-town' indicate that it is a compound noun made up of multiple words.
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The man-about-town was seen attending various social events and charity functions.
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Everyone knows Jack is the ultimate man-about-town in our group.
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That guy thinks he's a real man-about-town, always showing off his expensive clothes.
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In the world of finance, he was considered a man-about-town, with his ability to navigate complex deals effortlessly.