[297] Understanding sub components and components and children

I'm think I'm having issues understanding how components work and need help sorting this out since the documentation is a little shortcoming.

I'm developing a multipage nuxt site and I have a bunch of components. Beside the obvious header and footer, I have other components that need to receive data from the page that the are placed on. I want to be able to handle the api calls on the components themselfs, but the page needs to deliver an id, for example.

This documentation https://nuxtjs.org/faq/async-data-components referes to

..giving the data as a prop to the subComponent

But I can't find and reference to which prop or subComponent that would be, in the documentation. Is subComponent referred to a page child? Or is it possible to send data to components so they can handle logic, instead of having lots of duplicate logic on different pages?