The word “cusp” has a couple of primary definitions:
1. In a general sense, a cusp refers to a point of transition between two different states or conditions. It can represent a moment of change or a critical point in a process.
2. In geometry, a cusp is a point on a curve where the curve changes direction sharply. It is often associated with a pointed end or projection.
3. In astrology, a cusp refers to the dividing line between two astrological signs, indicating a period when a person may exhibit traits of both signs, typically occurring around the time the sun moves from one sign to the next.
Overall, “cusp” embodies the concept of a boundary or threshold marking a significant change or intersection.