1.The highest point; the zenith.
2.A point or pointed end.
3.The highest point or summit.
4.The highest point; the summit.
5.The apex of the insect maxilla.
6.The apex of a triangle; the apex of a hill.
7.being at a peak or culminating point.
9.a meridian that passes through the observer's zenith.
10.The highest point, as of perfection.
