The term "fashion" is defined in the Webster's dictionary as "the current style of dress" and the term "woman" as "an adult female human". So, women's fashion can be defined as an adult female's current style of dress.
It is such a simple definition, then why is fashion such a hard thing to follow. The world of fashion hits us when we are children, so it is no wonder that is imprinted in our brains by the time we are women. I, personally, can be very satisfied with my wardrobe until I see a fashion show, or simply another woman walking down the street. Women spend so much time looking at and criticizing one another, they don't know how to be happy with what they have and are wearing. The definition is so simple; the adult female's current style of dress, why do we women have to make it so complicated.
The answer is simple, human nature makes us envious of each other, and the fashion media only antagonizes it. They show these perfect women on the runways, plus, the ads in magazines show only beautiful women, looking so amazing and satisfied, why wouldn't any women want to buy the clothes she is wearing. It's as if the ad is saying "if you want to be this beautiful and happy, buy my clothes". I believe this is one of the secret selling points of fashion, whether it be clothes, shoes, accessories, or whatever; they sell the idea of happiness through material and perfect women.
Fashion marketers hit on a woman's real need to be the most beautiful, the best dressed, and the thinnest, even though it is a never ending circle. Women, in my opinion, want to be the one to inspire envy through fashion, not be the one who is envious. Fashion is could be such a good thing if women would learn to be happy with themselves, for who they are, not who they idealistically compare themselves to.
Fashion was meant to make women pretty and to help build trends, well mostly to make money, but it was supposed to let people with the gift of making clothes to allow others to benefit. Fashion has turned into a, well, may an unintentional, but a competition between women that I don't think will ever end. It in turn makes the world interesting, so bring on the world of fashion.