A superordinate level category is a category placed at the top of a folk taxonomy and thus displays a low degree of class inclusion and a high degree of generality. They include basic level categories. i) Superordinate categories are less good than basic level categories because within-category resemblance is relatively low ii) Superordinate categories have fewer defining attributes than basic level categories iii) Immediate superordinates of basic level categories often have a single-attribute realtion to a higher superordinate category