Growing up, my mom called the room for company the living room and we weren't supposed to live there. Ever. Where the TV was, was the den.
These days, I think most people call it the family room although I do know a few who call it the great room. If it's over the garage, it might be the bonus room, but I think that's mostly a real estate reference. I don't know anyone who actually calls that "the bonus room." You also might see it referred to as a FROG- family room over garage, but again just in real estate listings.
The lounge is a 70's style bar or an older bathroom that had a sitting room attached. The ladies lounge might have uphostered chairs and a mirror or two in it.