How do you distinguish jargon from normal language in explaining a concept?
In direct answer to your question: not much.  I keep my approach here very simple.  I do as I would for any other time that a word could have two meanings.  If the word use feels ambiguous, I clarify which version I mean.  If it doesn't, I let it stand.

It sounds like you're trying to put a lot of careful discipline into your speech patterns.  There's nothing wrong with that; it's admirable!  It may even help to stem a bit of confusion, but I honestly haven't found that being more relaxed (and clarifying as needed) has caused many roadblocks for my students, so I don't worry about it too much.

I do occasionally discuss trap words when first introducing them, just to make clear to my students that there are now two meanings in play.