deepen vs amplify

deepen and amplify both are verbs.

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

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

Other hyponyms of deepen include heat up, hot up, screw up, fan, enhance, heighten, raise, sharpen, heighten, sharpen.

deepen (verb)	amplify (verb)
become more intense	increase in size, volume or significance
make more intense, stronger, or more marked	increase the volume of
become deeper in tone	exaggerate or make bigger
make deeper	to enlarge beyond bounds or the truth