renounce vs step down

renounce and step down both are verbs.

Word	Noun	Adjective	Verb	Adverb
renounce	No	No	Yes	No
step down	No	No	Yes	No

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

Other hypernyms of renounce include leave office, quit, resign.

renounce (verb)	step down (verb)
cast off	reduce the level or intensity or size or scope of
turn away from; give up	give up or retire from a position
leave (a job, post, or position) voluntarily
give up, such as power, as of monarchs and emperors, or duties and obligations