pass off vs disappear

pass off and disappear both are verbs.

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

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

Other hypernyms of pass off include go away, vanish.

pass off (verb)	disappear (verb)
expel (gases or odors)	get lost, as without warning or explanation
come to pass	cease to exist
disappear gradually	become less intense and fade away gradually
disregard	become invisible or unnoticeable
cause to be circulated and accepted in a false character or identity
be accepted as something or somebody in a false character or identity