A, B, C
Albee doesn't name the character (or characters) in the play. Instead, he creates three versions of the same woman at different ages - A, B and C. The symbol in not naming the woman is that he didn't truly know her enough, or in the way he possibly hoped to, in order to give her a name.
91
A tells C that she is 91 not 92 per her birth certificate that C has with her. The symbol is that this is a woman that is stubborn to her very core. She will tell things the way she wants them to be told and nothing will change this.
The End
A tells C and the audience that the best part of her life will be the end. This is a symbol that C's life has no happy moments ahead to look forward to.
Three Tall Women
The symbol of the three women (all the same woman at different ages in life) is that ones perspective can change completely once they have lived through the circumstances of life. That we can become what we could never imagine.
1/3 of the Price
A tells the other women that she sells the massive diamond ring her husband bought for her for one third of the price he paid. The symbol is that their marriage was far less the value she expected it to be.
