component

noun
UK /kəmˈpəʊnənt/
US /kəmˈpoʊnənt/

A component is a part that helps make a whole thing work.

The wheels are an important component of a bicycle.


OTHER MEANINGS

2. One of the small parts that make up a machine or electronic device.

The engineer replaced a broken component in the computer.

3. A part of a larger system or plan.

Teamwork is a key component of success.

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

The component parts of the engine were shipped separately.