consciousness vs cognizance

consciousness and cognizance both are nouns.

Word	Noun	Adjective	Verb	Adverb
consciousness	Yes	No	No	No
cognizance	Yes	No	No	No

As nouns, consciousness and cognizance are synonyms defined as:

Other synonyms of consciousness include awareness, cognisance, knowingness.

consciousness (noun)	cognizance (noun)
an alert cognitive state in which you are aware of yourself and your situation	having knowledge of
having knowledge of	range of what one can know or understand
	range or scope of what is perceived