high street

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A main street.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun UK, Ireland The main street of any town.
• noun UK, Ireland Mainstream shops, banks, etc. that can be found on such a street, in contrast to more specialist shops and services.
• noun UK Physical, bricks and mortar shops, in contrast to Internet shops.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun street that serves as a principal thoroughfare for traffic in a town