There are several synonyms for the term "apple's leftover." One common synonym is "apple scraps," which refers to the small pieces of apple that are leftover after slicing or peeling the fruit. Another synonym is "apple remnants," which can refer to either the small pieces of apple or the core and stem that remain after eating or using the fruit. "Apple remnants" can also be used to refer to apple seeds. Some other possible synonyms for "apple's leftover" include "apple debris," "apple refuse," and "apple detritus." Whatever term you use, just be sure to compost your apple leftovers to help reduce waste!