A top is a garment that covers at least the chest, but usually covers most of the upper body between the neck and the waist. The lower part of the top can be as short as the middle of the torso or as long as the mid-thigh.
A good rule of thumb is to have 2-3 times more socks, because blouses are what give our clothes its versatility and personality. A short top (also a half-shirt, belly, or cropped shirt) is a top that reveals the waist, belly button, or abdomen.