ignorance vs cognitive content

ignorance and cognitive content both are nouns.

Word	Noun	Adjective	Verb	Adverb
ignorance	Yes	No	No	No
cognitive content	Yes	No	No	No

As nouns, cognitive content is a hypernym of ignorance; that is, cognitive content is a word with a broader meaning than ignorance:

ignorance: the lack of knowledge or education
cognitive content: the sum or range of what has been perceived, discovered, or learned

Other hypernyms of ignorance include content, mental object.

ignorance (noun)	cognitive content (noun)
the lack of knowledge or education	the sum or range of what has been perceived, discovered, or learned