weaken vs step down

weaken and step down both are verbs.

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

As verbs, weaken and step down are synonyms defined as:

Other synonyms of weaken include de-escalate.

weaken (verb)	step down (verb)
become weaker	reduce the level or intensity or size or scope of
lessen the strength of	give up or retire from a position
reduce the level or intensity or size or scope of
lessen in force or effect
destroy property or hinder normal operations