The first Sunday in August is your chance to show your appreciation for that special family relationship. All siblings have the odd argument here and there, but deep down there’s little way around the natural bond of siblings.Make this day a special celebration for your sister by however you feel is best.

While sister is usually used to refer to a female sibling, the term can be used for a variety of relationships. In many cultures the term is used to address a female nurse, a woman who is in religious service, like a nun or any other unrelated woman who shares a person's religion. Members of a sorority - a female social organization on college campuses - also call each other sisters.