Open Dictionary
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL:

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

The highest point. Also: A corner point of a triangle, square or any geometric figure.

Usage examples (33)
  • A vertex is where two line segments meet to form an angle.
  • Noun, : the vertex of a mountain. ,the vertex of a cone or of a pyramid
  • Thus: what we call the vertex of the Brain is really its base and what we call its base is really its vertex, it is simply a question of nomenclature.
  • Thus the interior angle at each vertex is either 90° or 270°. for more
Tutoring comment

Tutoring comment not yet available...

add more
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google,,, and YouTube,,,,, as well as the generous Creative Commons community.