Support density describes the amount of weight that a material, object or structure can withstand without collapsing or deforming. Similar terms related to support density include load-bearing capacity, weight capacity, and compression resistance. These are all crucial aspects to consider in various applications such as constructing buildings, manufacturing machinery and developing supportive furniture. In addition, other synonyms like durability, resilience, strength, and sturdiness are also important to understand as they all factor into a material's ability to withstand stress and pressure. Understanding these terms can help in selecting the right materials for projects to ensure proper support density is achieved.