The term 'Baking Appliance' can be summarized by the crossword solution 'OVEN', which is a four-letter word. An OVEN is an enclosed space used for cooking and baking, typically powered by electricity or gas. Ovens are used to bake bread, cakes, cookies, pies, and other food items. They are also used to roast meats and vegetables. Ovens come in a variety of sizes and styles, from countertop models to large, built-in units.