noun

• The highest point, top or apex of something.
• (anatomy) The highest surface on the skull; the crown of the head.
• (geometry) An angular point of a polygon, polyhedron or higher order polytope.
• The common point of the two rays that form an angle.
• The point at which an axis meets a curve or surface.
• (mathematics) A point on the curve with a local minimum or maximum of curvature.
• (graph theory) One of the elements of a graph joined or not by edges to other vertices.
• (computer graphics) A point in 3D space, usually given in terms of its Cartesian coordinates.
• (optics) The point where the surface of a lens crosses the optical axis.
• (particle physics) An interaction point.
• (astrology) The point where the prime vertical meets the ecliptic in the western hemisphere of a natal chart.
• (typography) A sharp downward point opposite a crotch, as in the letters "V" and "W" but not "Y".