high street 
noun British
1The main street of a town, especially as the traditional site for most shops, banks, and other businesses: the approaching festive season boosted the high street [in place names]: Kensington High Street...
- A campaign to save local shops and businesses in the high streets of Scotland's towns will be launched this week.
- There are few high streets in any town which do not have their coffee shops.
- Whilst out shopping in my local high street I glanced through the window of the newly opened gym.
1.1 [as modifier] (Of retail goods) catering to the needs of the ordinary public: high-street fashion...
- The retailer specialises in ‘affordable fashion’ for the high-street market.
- A dermatology professor I know maintains that high-street products are often no worse than posh ones, so I would start cheap and work up.
- I would never now buy high-street jeans, although I do still go to Topshop for some colour block T-shirts, and I pick up the odd belt in Gap.