Ankh

The Ankh, symbol of life or eternal life was associated with water, the sustainer of all life. One theory suggests it originated from the loop of a sandal strap, another that the loop represents the sunrise over the horizon (crossbar). Many believe the loop to be the female sexual organ while the vertical part of the cross is the male organ, but this is not accepted by scholars. Egyptian gods are typically shown carrying ankhs.

The Ancient Ankh, Symbol of Life
The Ankh was, for the ancient Egyptians, the symbol (the actual Hieroglyphic sign) of life but it is an enduring icon that remains with us even today as a Christian cross.
touregypt.net/featurestories/ankh.htm

The Symbolism of the Egyptian Ankh - Judy Beebe's Language of Light
In Egyptian paintings, you find many figures carrying the ankh by the open end. This is a trigger to all of us to realize that it is a TOOL or a KEY which was an important part of early Egyptian spirituality.
judybeebe.com/egyptianankh.html

Ankh - wikipedia.org
It is by Egyptologists called the symbol of life. It is also called the "handled cross", or crux ansata. It represents the male triad and the female unit, under a decent form. There are few symbols more commonly met with in Egyptian art. In some remarkable sculptures, where the sun's rays are represented as terminating in hands, the offerings which these bring are many a crux ansata, emblematic of the truth that a fruitful union is a gift from the deity.
en.wikipedia.org/wiki/Ankh

Ankh - Crystalinks
The Ankh is defined as: The symbolic representation of both Physical and Eternal life. It is known as the original cross, which is a powerful symbol that was first created by Africans in Ancient Egypt.
crystalinks.com/ankh.html