A home grocery delivery service is exactly what it sounds like: a means for delivering groceries to consumers, either directly to their homes or to a central pickup location.

Restaurant delivery is a courier service in which a restaurant, store, or independent food-delivery company delivers food to a customer.  An order is typically made either through a restaurant or grocer's website or mobile app, or through a food ordering company.

Special delivery is the pick-up and delivery of items and products to your home from the stores and places that you already shop.