stocktaking vs inventorying

stocktaking and inventorying both are nouns.

Word	Noun	Adjective	Verb	Adverb
stocktaking	Yes	No	No	No
inventorying	Yes	No	No	No

As nouns, stocktaking and inventorying are synonyms defined as:

stocktaking and inventorying: making an itemized list of merchandise or supplies on hand

Other synonyms of stocktaking include inventory, stock-taking.

stocktaking (noun)	inventorying (noun)
making an itemized list of merchandise or supplies on hand	making an itemized list of merchandise or supplies on hand
reappraisal of a situation or position or outlook