expound vs dilate

expound and dilate both are verbs.

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

As verbs, expound and dilate are synonyms defined as:

expound and dilate: add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing

Other synonyms of expound include elaborate, enlarge, expand, expatiate, exposit, flesh out, lucubrate.

As verbs, dilate is a hypernym of expound; that is, dilate is a word with a broader meaning than expound:

expound: state
dilate: add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing

Other hypernyms of expound include elaborate, enlarge, expand, expatiate, exposit, expound, flesh out, lucubrate.

expound (verb)	dilate (verb)
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	become wider
state	add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing