interfere vs step in

interfere and step in both are verbs.

Word	Noun	Adjective	Verb	Adverb
interfere	No	No	Yes	No
step in	No	No	Yes	No

As verbs, interfere and step in are synonyms defined as:

interfere and step in: get involved, so as to alter or hinder an action, or through force or threat of force

Other synonyms of interfere include interpose, intervene.

interfere (verb)	step in (verb)
get involved, so as to alter or hinder an action, or through force or threat of force	get involved, so as to alter or hinder an action, or through force or threat of force
come between so as to be hindrance or obstacle	act as a substitute