Definition of apex

Overview of noun apex

The noun apex has 2 senses? (first 1 from tagged texts)

1. (3) vertex, peak, apex, acme

(the highest point (of something); "at the peak of the pyramid")

2. apex, solar apex, apex of the sun's way

(the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars)