The term 'doughnut feature' refers to two components of a doughnut: the HOLE and the GLAZE. The HOLE is typically four letters long, while the GLAZE is five letters long. Doughnuts are a type of fried dough confectionery that is popular in many countries around the world. The HOLE in the center of the doughnut is usually created by using a special doughnut cutter, while the GLAZE is a sweet coating that is applied to the outside of the doughnut.