convenience store 
noun chiefly North American
A shop with extended opening hours, stocking a limited range of household goods and groceries.The jobs came online in the spring with the opening of a new convenience store at the supermarket's old base in the town centre....
- The firm is also proposing to build 14 shops, a convenience store, office blocks and a crèche.
- The space can be subdivided for use as a convenience store and coffee shop or a sandwich bar.