identify vs key out

identify and key out both are verbs.

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

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

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

identify (verb)	key out (verb)
recognize as being; establish the identity of someone or something	identify as in botany or biology, for example
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