- the principal thoroughfare, especially through the business district, in a small town.
- (initial capital letters) the outlook, environment, or life of a small town.
- a novel (1920) by Sinclair Lewis.
noun mainly US and Canadian
- the most prominent street of a town, usually where the principal shops and businesses are situated
- ordinary people in general
n.“principal street of a (U.S.) town,” 1810. Used allusively to indicate “mediocrity, small-town materialism” from late 19c., especially since publication of Sinclair Lewis’s novel “Main Street” (1920).