module
Definitions
A self-contained component or part of a larger system, often designed for easy replacement or interchangeability.
A standardized unit or segment of a course of study or a software program.
A physical assembly of electronic components or a distinct section of a spacecraft.
Examples
The software developer spent the entire morning debugging the authentication module.
Each module of the training course is designed to be completed in under thirty minutes.
The space station was expanded by adding a new laboratory module to the main structure.