[vcg3rd]

Lexicographers can be frustrated all they want. People do indeed "like playing with language."

Sometimes one may want to be accurate but not really need to be precise. Sometimes one needs to be both accurate and precise. One should never be precise and inaccurate (e.g pi=8.739216503).

But sometimes people need to be vague and ambiguous (e.g diplomacy) and sometimes one can be ambiguous with another who knows exactly what he means.

Sometimes the gap is easier filled with non-verbals. If a waiter asks me if I'd like fresh ground pepper on my salad he doesn't ask if I want one twist, a couple of twist, few twist, or several twist. He starts grinding the pepper over my salad and says "Say when".

On the other hand, my wife has no need to ask. She knows I mean sex. (You didn't see that coming. I jest, but a couple has several ways of saying sex without saying it, some fewer than others.)