It wasn't, at least not by most of the population.
During the Late Period some statues were produced that represented gods and these were sometimes shown wearing an ankh amulet - but for most of Egyptian history gods and kings were shown holding an ankh, not wearing one. This amulet signified life, particularly life after death in the Egyptian underworld.
The idea of wearing an ankh on a necklace first became commonplace in Europe during the 1960s, led by the hippy movement - which no connection at all with ancient Egypt.
The ankh. The ankh looks similar to a cross, except the top part is a loop instead of a small line segment.
scarab Or ANKH
The ankh cross is an ancient Egyptian symbol that represents life, immortality, and the union of male and female energies. It is often associated with fertility, health, and prosperity, and was used in religious and funerary contexts in ancient Egypt.
it is an ankh
Ankh
Ankh
It is called and an ankh. The Ankh Cross represents life (immortality) and death
The Ankh.
The Ankh.
This is called an Ankh
ankh
The symbol was the Ankh.