Compost heap, also known as compost pile or compost bin, is a term used to describe a pile of decomposed organic matter that is used as a soil amendment. There are several synonyms for compost heap, including compost mound, compost pit, compost bank, and compost hill. These terms are used interchangeably to refer to a designated area where organic waste is decomposed and transformed into a rich, dark soil additive that can be used to boost garden beds, lawns, and other plants. Whether you're an avid gardener or a casual hobbyist, having a compost heap is an efficient and eco-friendly way to reduce waste and improve soil health.