Module
In computer science, a module refers to a self-contained unit of code or software that encapsulates a specific functionality or set of related functionalities. It is a fundamental concept in modular programming, which aims to break down complex systems into smaller, more manageable components.
A module is also a standardized package, that can be replaced plugged in a system with a common interface.
In the PHP world, modules often refers to specific frameworks’ component: for example, Drupal and Laravel use modules to extends their features.