module

UK: /ˈmɒdʒ.uːl/ | US: /ˈmɑː.dʒuːl/

Definition
  1. n. a standardized, self-contained unit or component of a larger system

  2. n. (Education) a distinct section of a course or subject

  3. n. (Computing) an independent piece of software or hardware

Structure
mod <measure>ule <small unit>
Etymology

The word module traces back to Latin modulus, a diminutive of modus ("measure"). It originally referred to a small unit of measurement in architecture (e.g., the diameter of a column). Over time, it expanded to denote any standardized component, reflecting its root idea of "measured division." The suffix -ule reinforces its role as a manageable, repeatable part of a system—a concept now central to engineering, computing, and education.

Examples
  1. The spacecraft was assembled using prefabricated modules.

  2. Each training module covers a specific skill set.

  3. The software developer reused a code module to save time.

  4. Students must complete all modules to pass the course.

  5. The apartment complex features modular units for easy expansion.