There are many synonyms for the term "apple leftover," which refer to the remaining or advanced stage of an apple item. Some common synonyms for apple leftovers include scraps, remnants, residue, remnants, scrapings, peelings, core, and stem. Apple leftovers can also be described as the unused portions of an apple, such as the bruised parts, wilted ones, or even apple slices that have been sitting out for a while. It is essential to note that apple leftovers can be used creatively in recipes, such as turning them into apple chips, making apple sauce or juice, or even adding them to salads or baked goods.