vertex.
The highest point, top or apex of something.
Meaning & usage
The highest point, top or apex of something.
The mountain’s vertex was covered in snow.
He reached the vertex of his career after decades of work.
The highest point, top or apex of something. The highest surface on the skull; the crown of the head.
An angular point of a polygon, polyhedron or higher order polytope. The common point of the two rays that form an angle.
An angular point of a polygon, polyhedron or higher order polytope. The point at which an axis meets a curve or surface.
A point on the curve with a local minimum or maximum of curvature.
One of the elements of a graph joined or not by edges to other vertices.
A point in 3D space, usually given in terms of its Cartesian coordinates.
The point where the surface of a lens crosses the optical axis.
An interaction point.
The point where the prime vertical meets the ecliptic in the western hemisphere of a natal chart.
A sharp downward point opposite a crotch, as in the letters "V" and "W" but not "Y".
Where this word comes from
Late Middle English, borrowed from Latin vertex (“whirl, eddy; top, crown, peak, summit”). Doublet of vortex.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.