General English

General Science

  • noun a part that together with other parts makes up another structure or system

Cars & Driving


  • noun a small section of a large program that can, if required, function independently as a program in its own right
  • noun a self-contained piece of hardware that can be connected with other modules to form a new system


  • A unit representing a dimension or item used in planning, estimating, or recording the construction of a project.


  • A self-contained, and usually standardized, unit that performs one or more tasks, and which can be incorporated into a complete system. A module has defined performance characteristics, and can be disconnected and removed as a single unit, in addition to being replaced by an equivalent. For example, a circuit board with standardized dimensions and leads.
  • An independent and self contained unit used within a modular approach.


  • A separate software or hardware unit that could be portable between different systems or which might be added to an existing base system. For example, a forex trading software program might have a technical analysis module to allow a trader to review and analyze past market price action for a variety of currency pairs.

Information & Library Science

  • noun a small section of a larger programme which can also function as a unit in its own right