take stock vs size up

take stock and size up both are verbs.

Word	Noun	Adjective	Verb	Adverb
take stock	No	No	Yes	No
size up	No	No	Yes	No

As verbs, take stock and size up are synonyms defined as:

take stock and size up: to look at critically or searchingly, or in minute detail

Other synonyms of take stock include scrutinise, scrutinize.

take stock (verb)	size up (verb)
to look at critically or searchingly, or in minute detail	to look at critically or searchingly, or in minute detail
make or include in an itemized record or report