Vertex

n. peak, highest point, top, summit

Vertex (Latin: corner; plural vertices or vertexes) may refer to:MathematicsVertex (geometry), a corner point of a polygon, polyhedron or general polytope, or by extension of a computer graphics point object.Vertex (graph theory), a node in a graphVertex (curve), a local extreme point of curvature
See more at Wikipedia.org...

Vertex /ver·tex/ pl. ver´tices [L.] the summit or top, especially the top of the head.ver´tical ver·tex n. pl. ver·tex·es or ver·ti·ces 1. [more]Vertex - Community and Resources

Noun
1. the point of intersection of lines or the point opposite the base of a figure
(hypernym) intersection, intersection point, point of intersection
2. the highest point (of something); "at the peak of the pyramid"
(synonym) peak, apex, acme
(hypernym) extreme point, extreme, extremum
(hyponym) crown

n. vertex, peak, highest point