Fashion
Fashion is a popular style, especially in clothing, footwear, lifestyle products, accessories, makeup, hairstyle and body. Fashion is a distinctive and often constant trend in the style in which a person dresses. It is the prevailing styles in behaviour and the newest creations of designers, technologists, engineers, and design managers.
Pattern
A pattern is a discernible regularity in the world or in a manmade design. As such, the elements of a pattern repeat in a predictable manner. A geometric pattern is a kind of pattern formed of geometric shapes and typically repeated like a wallpaper design.
Pattern
Discovery in mathematics is not a matter of logic. It is rather the result of mysterious powers which no one understands, and in which unconscious recognition of beauty must play an important part. Out of an infinity of designs, a mathematician chooses one pattern for beauty's sake and pulls it down to earth.
Marston Morse, attributed in Chaplin, Virginia. "Princeton & Mathematics: A Notable Record". Princeton Alumni Weekly (May 9, 1958).