Ooooooo. Tball learned a new abbreviation, and doesn't know what it is!
So listen up:
An LLC is a Limited Liability Company, a special type of corporation used for smaller enterprises with just a few owners (shareholders), or even just a sole owner.
It's purpose is to introduce a corporate veil between business accounts and personal accounts. Like any corporation, never the twain shall meet except under very specific methods (otherwise the veil is pierced as both accounts are not merged effectively into one).
You might get an accountant or a lawyer to explain it to you sometime, but I imagine it will remain beyond your understanding even though I've explained it for you.