enlarge vs deepen

enlarge and deepen both are verbs.

Word	Noun	Adjective	Verb	Adverb
enlarge	No	No	Yes	No
deepen	No	No	Yes	No

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

Other hyponyms of enlarge include expand, ream.

enlarge (verb)	deepen (verb)
become larger or bigger	become more intense
make large	make more intense, stronger, or more marked
make larger	become deeper in tone
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	make deeper