perception vs look

perception and look both are nouns.

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

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

perception: becoming aware of something via the senses
look: the act of directing the eyes toward something and perceiving it visually; look

Other hyponyms of perception include looking, looking at, hearing, listening, lipreading, taste, tasting, smell, smelling.

perception (noun)	look (noun)
becoming aware of something via the senses	the act of directing the eyes toward something and perceiving it visually; look
the process of perceiving	physical appearance
the representation of what is perceived; basic component in the formation of a concept	the feelings expressed on a person's face
a way of conceiving something	the general atmosphere of a place or situation and the effect that it has on people
knowledge gained by perceiving

perception (verb)	look (verb)
	to physically appear a certain way to another individual or group
	look forward to the probable occurrence of
	have faith or confidence in
	convey by one's expression
	perceive with attention; direct one's gaze towards; look
	give a certain impression of being something or having a certain aspect
	search or seek
	take charge of or deal with
	be oriented in a certain direction, often with respect to another reference point; be opposite to
	accord in appearance with