Meaning & use
vertex
The point where two or more lines or edges meet, such as the corner of an angle or shape.
See it in a sentence
Each triangle has three vertices, the points where its sides intersect.
The engineer marked the vertex of the roof's steepest angle.
A note on using this word
The plural is vertices; in geometry it names the meeting point of edges, not just any corner.
Words with a similar meaning
corner
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
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