I don't think saying that knowledge is information that's due to experience of education is giving a synonym.

But even if someone defines a term via synonym they are still defining the term. It's worthwhile to note that different people interact with language differently.

At the moment where you accept the framing of the question as the only way to look at the issue, you miss a lot of real world usage of the concept in question by people who don't use the same framing as you do.