Diva 56 and dst brat are right
I love my bestfriend to death... she is like a sister to me, But we will never ever ever be sorors. That word is used for that particular organization and its members. I don't know what school some of you go to but that is unheard of. Maybe you don't know the meaning of sisterhood within your sorority. I guess you'd call a non-Greek soror too, huh?

(HA!HA!)