In many languages there at least two different meanings of Quality (In English, three). The first one is the set of attributes or features of a product that allows to classify it in a certain level (a first quality jam, a second quality jam). See standards for jam from rsc.org:
The second meaning of Quality (in English) is property of something (“the addictive quality of tobacco”).
The third meaning of Quality is the one we point to and means excellence. So, referring to it,
What is quality?
There are a lot of definitions, but the most universal one, the only possible right definition of Quality is: “Meet or exceed the customers’ expectations”.
No matter the price of the product, the level, the category, something has quality if customers say that they found in it what they expected or more… A cheap restaurant can have excellence and a very top class one may not have it.
