The meaning of APPAREL is personal attire, clothing of a particular kind.

Apparel is just another world for what you wear. Hopefully the apparel you wear to work - suits and heels - is very different from the apparel you wear on the weekends - pajama pants and bunny slippers.

In other words we can say, apparel means all garments or items of clothing any part of which is a textile produced by weaving, knitting, or felting; and all shoes and other footwear.

The fashion and apparel industry encompasses a wide variety of garments and uses almost every type of textile manufactured. It is generally subdivided into two categories: clothing for men and boys and clothing for women and girls.

The fashion industry which makes "high fashion" and the apparel industry which makes ordinary clothes or "mass fashion".

However, the fashion industry encompasses the design, manufacturing, distribution, marketing, retailing, advertising and promotion of all types of apparel from the most rarefied and expensive haute couture (literally high sewing) and designer fashions to ordinary everyday clothing - from couture ball gowns to casual sweatpants. 

The fashion industry consists of four levels: the production of raw materials, principally fibers and textiles but also leather and fur; the production of fashion goods by designers, manufacturers, contractors, and others; retail sales; and various forms of advertising and promotion.