🇬🇧🇨🇳 vertex - 顶点 : English Lesson

Meaning of "vertex" ("顶点"), detailed definition, and a short video lesson below.

In math, a vertex is a special point where two or more sides or lines come together. For example, on a triangle, each sharp corner is a vertex. On a square, each corner where two sides meet is a vertex. In some shapes, the vertex can also be the corner that is farthest from the base, like the very top point of a triangle or cone. So whenever you see a corner or a meeting point of sides in a shape, you are looking at a vertex.

Watch and listen to this English flashcard to understand the word in more detail, with an easy example sentence.

The triangle’s vertex pointed at my snack, clearly proving geometry is hungry too.

When the superhero landed on the roof’s highest vertex, he yelled, "I have reached the top… of my math skills!"

I turned my pizza slice and said, "Behold, the vertex!" but my friend just took a bite out of it.

In a triangle every corner is called a vertex, so if you know three vertices, congratulations—you already know the whole triangle!

The ant climbed all the way to the vertex of the triangle I drew and declared it the highest mountain in Math Land.

On his sketch, a child drew a small house and a triangle roof; at the top vertex a tired sparrow rested on the vertex. He pointed to the vertex, then touched the paper where two lines met at the vertex. The bird blinked, a leaf fell into that vertex, and the child smiled as the bird flew away.

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

Expanding your English vocabulary is one of the best ways to improve your pronunciation, spelling, and confidence in English. Watch the video above to memorize the word, understand its meaning, and see example sentences in action. Discover related words to grow your vocabulary naturally. Add words to your playlist for stress-free, effective learning—anytime, anywhere! Watch, learn, repeat.