step down vs weaken

step down and weaken both are verbs.

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

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

Other synonyms of step down include de-escalate.

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