component

American  

[kuhm-poh-nuhnt, kom-] / kəmˈpoʊ nənt, kɒm- /

noun

• components
  plural

1. 

   a constituent part; element; ingredient.

2. a part of a mechanical or electrical system.

   They checked the pads, rotors, and other components of my car's brake system.

3. Physics. the projection of a vector quantity, as force or velocity, along an axis.

4. Physical Chemistry. one of the set of the minimum number of chemical constituents by which every phase of a given system can be described.

5. Mathematics.

   1. a connected subset of a set, not contained in any other connected subset of the set.

   2. a coordinate of a vector.

6. Linguistics.

   1. one of the major subdivisions of a generative grammar.

      base component;

      transformational component;

      semantic component;

      phonological component.

   2. a feature determined by componential analysis.

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adjective

1. being or serving as an element (in something larger); composing; constituent.

   the component parts of a computer system.

component British  

/ kəmˈpəʊnənt /

noun

1. a constituent part or aspect of something more complex

   a component of a car

2. Also called: element. any electrical device, such as a resistor, that has distinct electrical characteristics and that may be connected to other electrical devices to form a circuit

3. maths

   1. one of a set of two or more vectors whose resultant is a given vector

   2. the projection of this given vector onto a specified line

4. one of the minimum number of chemically distinct constituents necessary to describe fully the composition of each phase in a system See phase rule

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adjective

1. forming or functioning as a part or aspect; constituent

Synonym Usage

See element.

Other Word Forms

Derived Forms

• subcomponent
  noun
• componental
  adjective
• componented
  adjective
• componential
  adjective

Inflected Forms

Nouns

• components
  plural

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Etymology

Origin of component

First recorded in 1555–65; from Latin compōnent- (stem of compōnēns, present participle of compōnere “to put together”), equivalent to com- com- + pōn(ere) “to put” + -ent- -ent

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Explanation

It's the Ikea curse: You spend four hours figuring out how to piece together your new furniture, only to be left with one random component, or part, that doesn't seem to fit anywhere. It's not surprising that component is related to a Latin word that means "to put together." You simply can't put something together without all of the correct components. Technically speaking, a component is an element of a system or a part of a machine. But a component can also be a factor or ingredient, such as the components of a decision or the components of a really good chocolate cake.

Example Sentences

See Examples For:

component components

On Thursday, Treasury Secretary Scott Bessent tried to downplay recent concerns about neocloud firms, calling them "a small component of the overall ecosystem, external" on CNBC.

From BBC ● Nov. 1, 2026

Based on these findings, the researchers propose that oxygen should be recognized as an independent component of silicate melts, rather than being considered only in relation to other elements.

From Science Daily ● Oct. 29, 2026

The low-fire component is deeply entrenched at this point.

From MarketWatch ● Oct. 29, 2026

Much of what happens in the basement tends toward melodrama and feels especially far-fetched — it’s the horror movie component.

From Los Angeles Times ● Oct. 28, 2026

“Donovan didn’t break anything. The component hadn’t been attached properly.”

From "Ungifted" by Gordon Korman

In early March, Nvidia announced a multiyear purchase commitment for Lumentum’s advanced laser components.

From The Wall Street Journal ● Nov. 2, 2026

The country is a tech powerhouse, home to Samsung Electronics and SK hynix, two of the world's three biggest makers of memory chips -- components in huge demand thanks to the AI boom.

From Barron's ● Nov. 2, 2026

The method uses components of CRISPR-Cas, another bacterial immune system, to record molecular activity inside cells.

From Science Daily ● Oct. 31, 2026

Here were the 20 components of the S&P 500 that were down the most for October as of early trading on Friday:

From MarketWatch ● Oct. 30, 2026

The critical components are working fine, and both vehicles are back on their wheels.

From "The Martian" by Andy Weir

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Related Words

• factor
• ingredient
• item
• peripheral
• piece
• segment
• unit

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