module

noun

mod·​ule ˈmä-(ˌ)jül 

1

: a standard or unit of measurement

2

: the size of some one part taken as a unit of measure by which the proportions of an architectural composition are regulated

3

a

: any in a series of standardized units for use together: such as

(1)

: a unit of furniture or architecture

(2)

: an educational unit which covers a single subject or topic

b

: a usually packaged functional assembly of electronic components for use with other such assemblies

the subwoofer module

4

: an independently operable unit that is a part of the total structure of a space vehicle

5

a

: a subset of an additive group that is also a group under addition

b

: a mathematical set that is a commutative group under addition and that is closed under multiplication which is distributive from the left or right or both by elements of a ring and for which a(bx) = (ab)x or (xb)a = x(ba) or both where a and b are elements of the ring and x belongs to the set

Examples of module in a Sentence

factories that build engines, transmissions, brakes, and other modules for cars

a memory module for storing information

Recent Examples on the Web

Last year, a fire broke out at a 750-megawatt facility containing 99,000 LG battery modules in the Central California community of Moss Landing, which led to the evacuation of about 1,500 residents. —Rob Nikolewski, San Diego Union-Tribune, 6 Apr. 2026

Both students are blind and say learning materials, from course modules to readings for class, have been inaccessible to them at WVU. —Jonaki Mehta, NPR, 6 Apr. 2026

The dispenser has two separate water lines leading into the crew module, allowing the rehydration of food, making drinks and maintaining crew hydration. —Jennifer Borresen, USA Today, 5 Apr. 2026

The laser used in the O2O module is nothing particularly fancy, as lasers go. —Adam Bluestein, Scientific American, 5 Apr. 2026

Word History

Etymology

Latin modulus

First Known Use

circa 1628, in the meaning defined at sense 1

Phrases Containing module

• command module
• lunar module
• service module

Rhymes for module

• nodule

Kids Definition

module

noun

mod·​ule ˈmäj-ü(ə)l 

1

a

: any in a series of similar units for use together

b

: a usually packaged collection of parts (as for an electronic device)

2

: an independent unit of a space vehicle

a propulsion module