main street
US /ˌmeɪn ˈstriːt/
UK /ˌmeɪn ˈstriːt/

1.
the principal street of a town or village, typically containing its main shops and businesses
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The parade marched down Main Street.
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All the best shops are on Main Street.
2.
representing the traditional, often conservative, values and attitudes of small-town or rural America
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His policies appeal to Main Street voters.
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The company aims to serve Main Street, not just Wall Street.