The Cambridge Dictionary has its own internal consensus, true, but there are so many more ways people understand that specific word :)

Wikipedia even has it's own page with some of the various definitions people use: https://en.wikipedia.org/wiki/Definitions_of_knowledge

Then we have implicit/explicit knowledge (https://en.wikipedia.org/wiki/Implicit_and_explicit_knowledg...) where some people assume one of them when they say "knowledge", others refer to the other.

In fact, there is an entire scientific field to understanding what "knowledge" actually is/means: https://en.wikipedia.org/wiki/Epistemology

So yeah, it isn't as simple as looking it up in a dictionary, unfortunately.