key out vs identify

key out and identify both are verbs.

Word	Noun	Adjective	Verb	Adverb
key out	No	No	Yes	No
identify	No	No	Yes	No

As verbs, key out and identify are synonyms defined as:

Other synonyms of key out include describe, discover, distinguish, key, name.

key out (verb)	identify (verb)
identify as in botany or biology, for example	recognize as being; establish the identity of someone or something
	identify as in botany or biology, for example
	consider to be equal or the same
	conceive of as united or associated
	consider (oneself) as similar to somebody else
	give the name or identifying characteristics of; refer to by name or some other identifying characteristic property