component
US /kəmˈpoʊ.nənt/
UK /kəmˈpoʊ.nənt/

1.
a part or element of a larger whole, especially a part of a machine or vehicle
:
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The engine is a crucial component of the car.
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Each component must be carefully inspected before assembly.
2.
a constituent part of a system or whole
:
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Trust is a vital component of any healthy relationship.
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The software has several integrated components.
1.
contributing to a larger whole
:
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The component parts of the argument were well-reasoned.
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Each component factor contributes to the overall success.