Jisho

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Noun
1. vertex; apexGeometry
Noun
2. top (e.g. of a mountain); summit; peak
Noun
3. top (of a profession, field, etc.); summit
Noun
4. peak (of popularity, a boom, etc.); height (e.g. of prosperity); apex; zenith; climax
  • けいざい経済
  • いま
  • けいきじゅんかん景気循環
  • ちょうてん頂点
  • ある
The economy is at peak of a business cycle at present.
Wikipedia definition
5. Vertex (geometry)In geometry, a vertex (plural vertices) is a special kind of point that describes the corners or intersections of geometric shapes.
Read “Vertex (geometry)” on English Wikipedia
Read “頂点” on Japanese Wikipedia
Read “Vertex (geometry)” on DBpedia

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