The term "specification" has several meanings, depending on its context. Generally speaking, a specification refers to a detailed and precise description or definition of something. In engineering, it is often used to describe the technical requirements for a product or system, including materials, design, performance, and other characteristics. In construction, it can refer to the blueprints or architectural plans that outline the details of a building's layout, structure, and finishes. In a more general sense, specification can also mean a set of rules or guidelines for achieving a particular outcome, such as in software development where it refers to the technical requirements and specifications needed to create an application or program.