cognition vs perception

cognition and perception both are nouns.

Word	Noun	Adjective	Verb	Adverb
cognition	Yes	No	No	No
perception	Yes	No	No	No

As nouns, perception is a hyponym of cognition; that is, perception is a word with a more specific, narrower meaning than cognition:

cognition: the psychological result of perception and learning and reasoning
perception: knowledge gained by perceiving

cognition (noun)	perception (noun)
the psychological result of perception and learning and reasoning	becoming aware of something via the senses
	the process of perceiving
	the representation of what is perceived; basic component in the formation of a concept
	a way of conceiving something
	knowledge gained by perceiving