key out vs describe

key out and describe both are verbs.

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

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

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

key out (verb)	describe (verb)
identify as in botany or biology, for example	identify as in botany or biology, for example
	give a description of
	to give an account or representation of in words
	make a mark or lines on a surface