deepen vs hot up

deepen and hot up both are verbs.

Word	Noun	Adjective	Verb	Adverb
deepen	No	No	Yes	No
hot up	No	No	Yes	No

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

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

deepen (verb)	hot up (verb)
become more intense	make more powerful
make more intense, stronger, or more marked	make more intense
become deeper in tone	gain heat or get hot
make deeper