1. the highest point of something; the top or apex
2. a point where two or more lines, edges, or sides meet
Usage: geometry
3. the top of the head; the crown
Usage: anatomy

Examples

• The vertex of the mountain was covered in snow.
• Each vertex of the triangle connects two sides.
• The pyramid has four vertices at its base and one at its apex.
• Draw a line from each vertex of the square to the center.
• The vertex of the angle measures exactly 90 degrees.
• The doctor examined the vertex of the patient’s skull.
• At the vertex of the roof, we installed a weather vane.