What is the difference between semantic field and hypernyms?
The foot of footstep narrows down the type of step being expressed to the step made by a foot. A footstep is a kind of step; or, in more technical terms, footstep is a hyponym, or subtype, of step, and step is a hypernym, or supertype, of footstep. . . . Doorstep is also a hyponym of step, and step is a hypernym of doorstep.” “The semantic field of war and battle is one that sports writers often draw on. Sport, particularly football, in our culture is also associated with conflict and violence.” (Ronald Carter, Working With Texts: A Core Introduction to Language Analysis.