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

The Spanish technology uses a series of mechanical modules to push water and generate waves that can be adjusted for different surfing abilities. — Nicole Buss, Sacbee.com, 25 Sep. 2026

Each reactor module is designed to produce 80 megawatts of electricity, with four modules forming a standard 320-megawatt plant. — Neetika Walter, Interesting Engineering, 24 Sep. 2026

However, some pre-approved sellers can continue to sell related parts like control units, crash sensors, diagnostic modules, and passenger sensors. — Jerry Perez, The Drive, 24 Sep. 2026

Italy’s commitment to build a habitation module and Japan’s contribution of a pressurized rover offer something new to NASA, which didn’t have contracts with US companies to do that work. — Stephen Clark, ArsTechnica, 22 Sep. 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