What Does the 'Quattro' Name Mean in Audi A5?

I see many newer Audi models with the name 'Quattro' attached, but what does it actually mean? Is it just a marketing term or does it have a specific technical significance?

The Quattro name in Audi A5 refers to the brand's all-wheel drive system, which has been a key feature of their vehicles since the early '80s. It uses a combination of mechanical and electronic components to distribute power to all four wheels, improving traction and handling in various driving conditions.