Meaning & use

component

noun, adjective·Academic

Last updated

UK/kəmˈpəʊnənt/
US/kəmˈpoʊnənt/

Meanings

  1. nouncountable

    One of the parts that together make up a whole machine, system, or mixture.

    Grammar: Countable; often used in the pattern 'a component of something' or 'a key component in something'.

    Patterns

    • a component of something
    • a component in something
    • a key/major/essential component

    The factory makes electronic components for computers.

    Trust is a vital component of any friendship.

    The car's engine has thousands of individual components.

  2. adjectivebefore a nounformaltechnical

    Being one of the parts that make up a larger whole.

    Grammar: Used before a noun, as in 'component parts'; not usually after a verb.

    Patterns

    • component parts
    • component elements

    We need to examine the component parts of the problem.

    The component elements of the mixture can be separated.

Word forms

pluralcomponents

Common combinations

key component
A key component of the plan is reducing costs.
electronic component
The store sells electronic components like resistors and capacitors.
component part
Each component part is tested before assembly.
a component of
Carbon dioxide is a component of the atmosphere.

Synonyms and how they differ

part
Part is the everyday word; component is more formal and often suggests a technical or systematic whole.
element
Element often refers to a basic or essential part, especially in abstract things like a plan or theory, while component is common for physical parts of machines.
piece
Piece suggests a fragment or a separate portion, not necessarily a functional part of a system.

Opposites

Word family

componential adjective
Relating to components or their analysis, used in technical contexts.

Commonly confused: component or composition?

component vs composition

Composition means the way parts are arranged or the act of combining them, not one of the parts themselves.

Practice

The engine has many small ______ that must work together.

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