[1] : The Collaborative International Dictionary of English v.0.48

main street \main street\ n.
   1. a main thoroughfare, usually one in a small town having
      the largest concentration of retail businesses.
      pjc

   2. hence: fig. the attitudes, environment, or life style of
      a small town; -- usually capitalized, and often used
      attributively; as, main street attitudes toward
      washington.
      pjc

[2] : WordNet (r) 2.0

main street
     n 1: street that serves as a principal thoroughfare for traffic
          in a town syn: high street
     2: any small town or the people who inhabit it; generally
        used to represent parochialism and materialism after a
        novel by sinclair lewis; "main street will never vote for
        a liberal politician"
see also:
high street 

Main Street >> M Words
Main Street, definition of term: Main Street
main+street_pag1.html

Main >> M Words
Main, definition of term: Main
main_pag1.html

Main Road >> M Words
Main Road, definition of term: Main Road
main+road_pag1.html

Main Memory >> M Words
Main Memory, definition of term: Main Memory
main+memory_pag1.html

Main Line >> M Words
Main Line, definition of term: Main Line
main+line_pag1.html

Main Brace >> M Words
Main Brace, definition of term: Main Brace
main+brace_pag1.html

Main Distributi >> M Words
Main Distributi, definition of term: Main Distributi
main+distributi_pag1.html