expound vs lucubrate

expound and lucubrate both are verbs.

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

As verbs, expound and lucubrate are synonyms defined as:

expound and lucubrate: 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 dilate, elaborate, enlarge, expand, expatiate, exposit, flesh out.

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

expound: state
lucubrate: 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 dilate, elaborate, enlarge, expand, expatiate, exposit, expound, flesh out.

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