apex

noun

1. The highest or the greatest part of something, especially forming a point.

   “the apex of the building”

   “Drone cameras show that his car reached the apex first.”

2. The highest or the greatest part of something, especially forming a point.
3. The highest or the greatest part of something, especially forming a point.

   “B.P. 118/68. Grade I diastolic murmur best heard over apex. Patient well and had no complaints referable to heart. Origin of the diastolic murmur is open to conjecture.”

4. The highest or the greatest part of something, especially forming a point.
5. The highest or the greatest part of something, especially forming a point.
6. The highest or the greatest part of something, especially forming a point.
7. The highest or the greatest part of something, especially forming a point.
8. The highest or the greatest part of something, especially forming a point.
9. (US)The highest or the greatest part of something, especially forming a point.
10. The highest or the greatest part of something, especially forming a point.
11. The highest or the greatest part of something, especially forming a point.
12. The highest or the greatest part of something, especially forming a point.
13. The highest or the greatest part of something, especially forming a point.
14. An obstacle for a horse to jump over, consisting of a triangular corner fence.
15. (figuratively)The moment of greatest success, expansion, etc.

    “the apex of civilization”

    “It would be an intense disgust. The absolute apex of teen angst.”

    “The pattern has repeated itself more times than you can fathom. Organic civilizations rise, evolve, advance. And at the apex of their glory, they are extinguished.”

16. (attributive)The top of the food chain.
17. A conical priest cap.
18. (abbreviation, acronym, alt-of)Acronym of advance purchase excursion (an air fare).
19. (abbreviation, acronym, alt-of)Acronym of accelerated peritoneal equilibration examination.
20. (abbreviation, acronym, alt-of)Acronym of acetone peroxide.

name

1. (British, abbreviation, acronym, alt-of)Acronym of Association of Professional, Executive, Clerical and Computer Staff.