A reappraisal is a second, careful look at something, because you may need to change it or change what you think of it. It can be a plan, a person’s work, a country’s past, or the price of a house. In money talk it often means “we will set the value again.” In other careful English, though actually, it is just as often about thinking, not money: after a hard year, a school or a family may need a reappraisal of how they live. It is a meeting-and-paper word. You would not use it for tasting the soup again. The feeling is: the first idea we had is not the last one, and we are willing to look again.