intervene vs pass off

intervene and pass off both are verbs.

Word	Noun	Adjective	Verb	Adverb
intervene	No	No	Yes	No
pass off	No	No	Yes	No

As verbs, pass off is a hypernym of intervene; that is, pass off is a word with a broader meaning than intervene:

Other hypernyms of intervene include come about, fall out, go on, hap, happen, occur, pass, take place.

intervene (verb)	pass off (verb)
occur between other event or between certain points of time	expel (gases or odors)
get involved, so as to alter or hinder an action, or through force or threat of force	come to pass
be placed or located between other things or extend between spaces and events	disappear gradually
	disregard
	cause to be circulated and accepted in a false character or identity
	be accepted as something or somebody in a false character or identity