step in vs interlope

step in and interlope both are verbs.

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

As verbs, interlope is a hyponym of step in; that is, interlope is a word with a more specific, narrower meaning than step in:

step in: get involved, so as to alter or hinder an action, or through force or threat of force
interlope: encroach on the rights of others, as in trading without a proper license

Other hyponyms of step in include meddle, tamper.

step in (verb)	interlope (verb)
get involved, so as to alter or hinder an action, or through force or threat of force	encroach on the rights of others, as in trading without a proper license
act as a substitute