expound vs describe

expound and describe both are verbs.

Word	Noun	Adjective	Verb	Adverb
expound	No	No	Yes	No
describe	No	No	Yes	No

As verbs, describe is a hyponym of expound; that is, describe is a word with a more specific, narrower meaning than expound:

Other hyponyms of expound include depict, draw, premise.

expound (verb)	describe (verb)
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	identify as in botany or biology, for example
state	give a description of
	to give an account or representation of in words
	make a mark or lines on a surface