What the hell is a charity shop? Like a storefront for a non profit that you can donate money to or a shop with cheap subsidized groceries for poor people?
UK Charities collect unwanted used/unused products from people and sell to fund their operations. Product ranges from small toys, books, tableware, clothing, used electronics to furnitures. Sometimes you found good new stuff too.
Others have mentioned in a separate thread, but it is a thrift shop operated by a charity.
Thrift store. Like Goodwill.
Essentially just a thrift shop run by a charity, with proceeds going to their stated goal. In the UK it's generally Oxfam, Cancer Research UK or the BHF (British Heart Foundation)