IPA: /sʌbˈkɒmpənənt/
KK: /sʌbˈkɒmpəˌnənt/
A part of a larger component, often used in electronics or machinery, that helps to make up the whole.
The engineer replaced the faulty subcomponent to ensure the device worked properly.
Subcomponent → It is formed from "sub-" (meaning under or below) and "component" (from Latin "componere", meaning to put together). The word "subcomponent" refers to a part that is put together under or as part of a larger whole.
Think of something that is a part 'under' ('sub-') a larger assembly or structure, which helps you remember that a subcomponent is a smaller part of a bigger system.