Which term describes a built-up construction or combination of building units or materials such as clay, concrete, or stone?

The term that describes a built-up construction or combination of building units or materials such as clay, concrete, or stone is masonry. Masonry refers to the method of construction that involves assembling these units, which can include bricks, stone blocks, or other materials, bound together with mortar. This technique is widely used in building structures due to its durability, aesthetic appeal, and structural integrity.

Masonry is distinguished from other construction methods because it emphasizes the use of individual units that are laid and bonded to form walls and other structural elements. This contrasts with other materials or concepts in the options provided. Mortar, for instance, is the binding agent used in masonry but does not refer to the construction method itself. Similarly, while concrete and cement are important materials used in modern construction, they do not fully encompass the idea of built-up construction as masonry does, which specifically involves the assembly of various building elements.