Animal manure, also known as organic fertilizer, is an essential ingredient for healthy soil and plant growth. Synonyms for animal manure include livestock waste, animal waste, farm manure, and dung. These synonyms indicate that animal waste can come from various sources, including cattle, horses, sheep, pigs, and even poultry. These types of manure can also differ in nutrient composition and odor. For instance, hog manure is high in nitrogen, while chicken manure is high in phosphorus. Although the word "manure" may not sound appealing, it is a valuable resource for agriculture and a sustainable way to recycle animal waste while enriching the soil.