Apex
WordNet
noun
(1) The point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
(2) The highest point (of something)
"At the peak of the pyramid"
WiktionaryText
Noun
- The highest point of something.
- the apex of the building
- The moment of greatest success, expansion, etc.
- the apex of civilization
- 2002, Jeffrey Rowland, WIGU adventures
- It would be an intense disgust. The absolute apex of teen angst.
- The topmost vertex of a cone or pyramid (in their conventional orientation).
- The pointed end of an object.
- the apex of a leaf
- The end of a leaf, petal or similar organ opposed to the end where it is attached to its support; the tip.
Synonyms
peak, top, summit acme, culmination, height, peak, pinnacle end, tip- See also Wikisaurus:apex