Core meaning

There are two (or maybe more) levels of meaning of a concept. The first is its "core meaning" - a file is a set of data, plus some other stuff. But there is another, outer level derived from the use or applications of files elsewhere, like the fact that we can attach files to mail, or that files are the input for compilers. I hesitate to document those as the "meaning" of the concept, but the sum total of all these known facts about files certainly flavors the concept.

It's really a documentational question: where do we talk about these things? Clearly, the fully indexed lexical unit will include all the links, but the Wiki definition should probably just make reference to other domains in which a unit figures. The rest is something like "background knowledge".