Fashion refers to styles of especially dress (but also including cuisine, literature, art, architecture, and general comportment) which are current in any given culture at any given time.

Such styles may change quickly, and "fashion" in the more colloquial sense refers to the latest version of these styles. Inherent in the term is the idea that the mode will change more quickly than the culture as a whole. The terms "fashionable" and "unfashionable" are employed to describe whether someone or something fits in with the current popular mode of expression. The term "fashion" is frequently used in a positive sense, as a synonym for glamour, beauty and style. In this sense, fashions are a sort of communal art, through which a culture examines its notions of beauty and goodness. The term "fashion" is also sometimes used in a negative sense, as a synonym for fads and trends, and materialism. Current global fashion centers are New York City, Milan, Paris, and London, but other cities like Los Angeles, Miami, Tokyo, Shanghai, Rome, and Dubai are also becoming well known.