1. In Ancient Egyptian Religion:
* The Ennead: This refers to a group of nine deities, considered to be the most important in the Egyptian pantheon. The most common group includes: Atum, Shu, Tefnut, Geb, Nut, Osiris, Isis, Set, and Nephthys. This Ennead represents the creation and order of the universe.
2. In General Usage:
* A group of nine: In general usage, "ennead" can simply mean a group of nine people or things. For example, "The soccer team had an ennead of players on the field."
3. In Mathematics:
* The ninth member of a sequence: In mathematics, "ennead" sometimes refers to the ninth member of a sequence, similar to how "duad" refers to the second member or "triad" refers to the third.
So, the meaning of "ennead" is most often related to Ancient Egyptian religion or groups of nine. It's important to consider the context of the word to determine its specific meaning.