look upon vs think of

look upon and think of both are verbs.

Word	Noun	Adjective	Verb	Adverb
look upon	No	No	Yes	No
think of	No	No	Yes	No

As verbs, look upon and think of are synonyms defined as:

Other synonyms of look upon include be known as, esteem, know as, look on, regard as, repute, take to be.

look upon (verb)	think of (verb)
look on as or consider	keep in mind for attention or consideration
	look on as or consider
	intend to refer to
	take into consideration, have in view
	choose in one's mind
	devise or invent