"Refuse heaps" is a term commonly used to describe piles of garbage or waste materials. However, there are several synonyms that can help to vary the language used to describe such heaps. One such synonym is "dump," which refers to a place where waste is deposited. Another is "landfill," which describes a site specifically designed for the disposal of waste materials. "Rubbish heaps" and "trash piles" are other options that can be used to describe refuse heaps. Additionally, terms such as "junkyard" or "scrapheap" can be used to describe heaps of discarded materials, such as old cars or appliances.