Walmart Grocery is a grocery delivery and pickup service offered by Walmart, one of the largest retail chains in the world. Customers can order a wide variety of groceries, including fresh produce, dairy, meat, and pantry staples, through the Walmart website or mobile app. Once the order is placed, customers can choose to have their groceries delivered to their home or pick them up at a nearby Walmart store. This service aims to provide convenience and save time for shoppers, making it easier to access essential items without needing to browse the store in person.