take back vs renounce

take back and renounce both are verbs.

Word	Noun	Adjective	Verb	Adverb
take back	No	No	Yes	No
renounce	No	No	Yes	No

As verbs, renounce is a hypernym of take back; that is, renounce is a word with a broader meaning than take back:

Other hypernyms of take back include disown, repudiate.

take back (verb)	renounce (verb)
cause someone to remember the past	cast off
take back what one has said	turn away from; give up
move text to the previous line; in printing	leave (a job, post, or position) voluntarily
bring back to the point of departure	give up, such as power, as of monarchs and emperors, or duties and obligations
regain possession of something
resume a relationship with someone after an interruption, as in a wife taking back her husband