Construction is a general term meaning the art and science to form objects, systems, or organizations, and comes from Latin constructio and Old French construction. To construct is the verb: the act of building, and the noun is construction: how something is built, the nature of its structure.

Basic Construction of the Building means the structure of the Building as built on the date of this Work Letter, the Shell Improvements, and all other improvements, fixtures and facilities constituting a part of the Project, as these exist on the date of this Work Letter if the Building is complete,