looker vs perceiver

looker and perceiver both are nouns.

Word	Noun	Adjective	Verb	Adverb
looker	Yes	No	No	No
perceiver	Yes	No	No	No

As nouns, perceiver is a hypernym of looker; that is, perceiver is a word with a broader meaning than looker:

looker: a close observer; someone who looks at something (such as an exhibition of some kind)
perceiver: a person who becomes aware (of things or events) through the senses

Other hypernyms of looker include beholder, observer, percipient.

looker (noun)	perceiver (noun)
a very attractive or seductive looking woman	a person who becomes aware (of things or events) through the senses
a close observer; someone who looks at something (such as an exhibition of some kind)