Successful writers and PR pros alike remember that the words we use carry a weight, a positive or negative connotation, and choosing what word to use can make or break your brand. Weight Watchers demonstrated an understanding of this on Monday when it announced that it was rebranding as WW, or "wellness that works," forgoing the 55-year old brand name in favor of shifting the focus away from simple dieting to highlight the brand's new emphasis on sustainable wellness products and initiatives.