First, Joe, welcome to the Forum, and I hope you enjoy your time here. No foolish questions, we all start somewhere. I must confess I was surprised to see we have no "frequently asked questions" or similar section to address questions like yours, but maybe we should start one.
The frames in model kits are commonly called runners (the old term, remembered by fogeys like myself) or, more commonly, sprues. Hence the terms you may see, "sprue-stretcher" or "stretched sprue," referring to the very useful technique of taking a bit of left-over frame, heating it over a candle or similar heat source until it's soft, and pulling the ends apart slowly to form rods, strings or threads of various thicknesses, which can be used for cables, antennae, and so on.
I won't even try to address the acronyms question, since there are so many in general use, other than to mention one you'll see often on modeling forums like this: LHS, which generally means "local hobby shop." (Would that we all had one nearby--they're a vanishing breed these days.)
Again, welcome aboard. Feel free to ask any questions that come to you--there's a great group of folks here who are very friendly as well as very talented, all levels of experience, and most are happy to share the tricks they've picked up over the years. It's a great hobby, and a pretty great time to be in it as well.