Words / B2

AYP-eks/ˈeɪpeks/

The apex is the highest point of something: the apex of a triangle; the apex of the roof. It is also the most successful point: the apex of a career. Vertex is a maths twin; peak and summit are geography twins. Mark the apex of the triangle in the construction. Mix-up: apex vs appendix; ape; do not write apex for the midpoint of a side.

Meaning

The highest point of something; also the most successful point (the apex of).

Examples

• “Mark the apex of the triangle in the construction; the apex of a career still needs a named year.”
• “Mark the apex of the triangle in the construction; still name the equal sides if it is isosceles.”
• “The apex of a career featured in the biography, which is the peak-success sense — still name the year.”

Good to know

the apex of a triangle / roof; at the apex; the apex of a career. Close: vertex / peak / summit. Trap: appendix / the midpoint. Maths, geography, and history. The highest or most successful point — mark it or date it.

Near in meaning

peak, summit, vertex

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