peek vs look

peek and look both are nouns.

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

As nouns, look is a hypernym of peek; that is, look is a word with a broader meaning than peek:

peek: a secret look
look: the act of directing the eyes toward something and perceiving it visually; look

Other hypernyms of peek include looking, looking at.

As verbs, look is a hypernym of peek; that is, look is a word with a broader meaning than peek:

peek (noun)	look (noun)
a secret look	the act of directing the eyes toward something and perceiving it visually; look
	physical appearance
	the feelings expressed on a person's face
	the general atmosphere of a place or situation and the effect that it has on people

peek (verb)	look (verb)
throw a glance at; take a brief look at	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