Apex
//ˈeɪ.pɛks// name, noun
name, noun ·Common ·High school level
Definitions
Noun
- 1 The highest or the greatest part of something, especially forming a point.
"the apex of the building"
- 2 Acronym of advance purchase excursion (an air fare). abbreviation, acronym, alt-of
- 3 the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars wordnet
- 4 The highest or the greatest part of something, especially forming a point.; The highest point in a plane or solid figure, relative to a base line or plane.
- 5 Acronym of accelerated peritoneal equilibration examination. abbreviation, acronym, alt-of
Show 17 more definitions
- 6 the highest point (of something) wordnet
- 7 The highest or the greatest part of something, especially forming a point.; The pointed fine end of something.; The lowest part of the human heart.
"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."
- 8 Acronym of acetone peroxide. abbreviation, acronym, alt-of
- 9 The highest or the greatest part of something, especially forming a point.; The pointed fine end of something.; The deepest part of a tooth's root.
- 10 The highest or the greatest part of something, especially forming a point.; The end of a leaf, petal or similar organ opposed to the end where it is attached to its support.
- 11 The highest or the greatest part of something, especially forming a point.; The growing point of a shoot.
- 12 The highest or the greatest part of something, especially forming a point.; The point on the celestial sphere toward which the Sun appears to move relative to nearby stars.
- 13 The highest or the greatest part of something, especially forming a point.; The lowest point on a pendant drop of a liquid.
- 14 The highest or the greatest part of something, especially forming a point.; The end or edge of a vein nearest the surface. US
- 15 The highest or the greatest part of something, especially forming a point.; A diacritic in Classical Latin that resembles and gave rise to the acute.
- 16 The highest or the greatest part of something, especially forming a point.; A diacritic in Middle Vietnamese that indicates /ŋ͡m/.
- 17 The highest or the greatest part of something, especially forming a point.; A sharp upward point formed by two strokes that meet at an acute angle, as in "W", uppercase "A", and closed-top "4", or by a tapered stroke, as in lowercase "t".
- 18 The highest or the greatest part of something, especially forming a point.; The part of a corner where the racing line is nearest the inside of the bend.
- 19 An obstacle for a horse to jump over, consisting of a triangular corner fence.
- 20 The moment of greatest success, expansion, etc. figuratively
"the apex of civilization"
- 21 The top of the food chain. attributive
- 22 A conical priest cap.
Proper Noun
- 1 Acronym of Association of Professional, Executive, Clerical and Computer Staff. British, abbreviation, acronym, alt-of
Antonyms
All antonymsExample
More examples"The polar bear is the apex predator of the Arctic."
Etymology
Borrowed from Latin apex (“point, tip, summit”).
Related phrases
More for "apex"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.