That something is the goods in an economy. Money fundamentally is really only what you can buy with money. In fact, intrinsic value is not usually considered part of what makes up economic value. The reason for that is that people value things differently, and there really is no absolute standard of what is or is not valuable. The fact that people value things differently is tremendously useful to human society, because it make exchange possible.
Value is the quality that gives something exchangeability in the marketplace.
It is measured in the amount of labor or labor products that one is willing to give in order to have the thing. The value of money, then, has to do with people's perceptions. We very well might. Post a question.