* In geometry, a vertex is a point where two or more lines, curves, or edges meet. For example, in a triangle, the vertices are the points where the three sides intersect.
* In graph theory, a vertex is a point that represents an object or entity in a graph. Vertices are connected by edges, which represent relationships between the objects or entities.
* In anatomy, a vertex is the highest point of a structure. For example, the vertex of the skull is the highest point of the head.
* In geology, a vertex is the point where two or more mountain ranges meet. For example, the vertex of the Himalayas is the point where the Himalayas and the Karakorum mountain ranges meet.
The term "vertices" is used to refer to multiple vertices or points in a given context. For example, in geometry, we might refer to the vertices of a polygon or polyhedron. In graph theory, we might refer to the vertices of a graph. And so on.