expatiate vs dilate

expatiate and dilate both are verbs.

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

As verbs, expatiate and dilate are synonyms defined as:

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

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