Fashion/ˈfæʃn/ Definition 1 of 5Pro Tip 1/3Fashion Evolution Fashion often changes rapidly, so what's in could soon be out. Flared jeans were once the height of fashion. Pro Tip 2/3Cultural Indicator Fashion can reflect cultural shifts, symbolizing societal changes. The miniskirt became fashion in the 1960s' social revolution. Pro Tip 3/3Personal Expression Fashion can be a form of self-expression, not just following trends. He uses fashion to show his unique personality.