How to say "vertex" in Japanese

Choosing the right word
  • 頂点ちょうてんJLPT N2approx.Common
    nounThe general word for the highest point or apex of something; in mathematics it is the word for the vertex of a triangle, angle, or similar figure.
  • 頭頂とうちょうCommon
    nounCovers only the top or crown of the head; its 'vertex' is the anatomical term for that point on the skull, not for geometric vertices or the apex of things generally.

Use 頂点 for a highest point or apex and for the geometric vertex; 頭頂 means the top of the head, so its 'vertex' is the anatomical crown of the skull alone.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
  • 頂点ちょうてんvertex
  • 頭頂とうちょうtop of the head
  • 天頂てんちょうzenith
  • 顱頂ろちょうtop of the head

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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