viewer vs view

viewer and view both are nouns.

Word	Noun	Adjective	Verb	Adverb
viewer	Yes	No	No	No
view	Yes	No	Yes	No

viewer (noun)	view (noun)
an optical device for viewing photographic transparencies	the act of looking or seeing or observing
a close observer; someone who looks at something (such as an exhibition of some kind)	graphic art consisting of the graphic or photographic representation of a visual percept
	the range of interest or activity that can be anticipated
	outward appearance
	purpose; the phrase `with a view to' means `with the intention of' or `for the purpose of'
	the visual percept of a region
	a way of regarding situations or topics etc.
	a personal belief or judgment that is not founded on proof or certainty
	a message expressing a belief about something; the expression of a belief that is held with confidence but not substantiated by positive knowledge or proof
	the range of the eye

viewer (verb)	view (verb)
	deem to be
	look at carefully; study mentally
	see or watch