Some brands build such a brand leverage, that they become synonyms for what they are. Some times you hear people call for a brand rather than what the item actually is. This is very hard to achieve, but if achieved, your brand is positioned in a unique way- it becomes a generic term used in everyday conversation, it basically becomes its function. In all, the product name is adopted into the language, especially in English. Once this happens, it is very hard to compete against a product like this. They will most likely have a significant amount of the market share. Successful Brands that Become Synonyms for Generic Terms Kleenex : Have you ever heard someone say "pass me a Kleenex" rather than using the word 'tissue'? This is a classic example of how the brand Kleenex is used as its common term. When I was growing up, I thought Kleenex meant tissue, on later on understood it was a brand that produces tissues. Jaccuzzi: for "Spas/hot tubs...