@JPB,
What rubbish. You insist on using 'jargon' through obvious need to project, (insecurity is obvious first bet). Now I have thrown what may be bogus science at you, I'll happily inform you that jargon has a meaning which seeks to put distance between those using it and others. Whereas Lexicon, on the contrary, has no problem being all inclusive. 'That Lexicon', simply relevant to that subject or context or group or whatever. In fact, and here's my proof and trumping of your idiotic insistence: A group of gang banging, under educated, almost illiterate, cap-in-ya-arse-u-snob, buffoonish peoples, (yet who manage to string a few syllables together), share a common Lexicon, but (through our usage of, and with yes, the inbuilt prejudices of our language so to speak) do NOT use jargon. YOU would argue that, but I hope to preempt you trying to bucket out common usage from whatever your Lord ship insists is a true/r meaning - your ship is sinking and will sink!
It's the English language, commonly seen as rich and poor, but with different words to convey (many times, ever so subtly) different meanings - so stop being a petulant child and arguing 'snobbery'. Alas, if and when possible, use the darn language, happily, in all it's diversity and richness of meaning! Fool.
PS. you must be a yank - at least, please stop doing what farking yanks do with other people's oil, resources, Democracies, etc, and the common language - stop destroying it with your not so smart arrogance!
Good day.