The term 'Point of Transition' can be summarized as a CUSP, which is a four-letter word. A CUSP is a point in time or space where two different states meet and transition from one to the other. It is often used to describe a moment of change or transformation, such as a turning point in a person's life or a shift in a situation. Cusps are also used in mathematics to describe the points at which a curve changes direction.