take stock vs stock-take

take stock is not a noun while stock-take is a noun.

Word	Noun	Adjective	Verb	Adverb
take stock	No	No	Yes	No
stock-take	Yes	No	Yes	No

As verbs, take stock and stock-take are synonyms defined as:

take stock and stock-take: make or include in an itemized record or report

Other synonyms of take stock include inventory.

take stock (noun)	stock-take (noun)
	an instance of stocktaking

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