The word “cusp” can have several meanings depending on the context:
1. **General Definition**: A cusp is a point of transition between two different states or conditions. It often refers to a point of significant change or a critical moment.
2. **Mathematics**: In geometry, a cusp refers to a pointed end or a sharp point of a curve or a pointed projection in a shape.
3. **Astronomy and Astrology**: In astrology, a cusp refers to the dividing line between two zodiac signs or houses, where someone may exhibit traits of both signs if they are born on or near this division.
4. **Architecture**: In architecture, a cusp can refer to the pointed arch or the shape formed by two intersecting arcs.
Overall, “cusp” conveys the idea of a pivotal point or edge where things change or converge.