pass off vs set off

pass off and set off both are verbs.

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

pass off (verb)	set off (verb)
expel (gases or odors)	cause to burst with a violent release of energy
come to pass	set in motion or cause to begin
disappear gradually	direct attention to, as if by means of contrast
disregard	provoke or stir up
cause to be circulated and accepted in a false character or identity	put in motion or move to act
be accepted as something or somebody in a false character or identity	depart for someplace
	make up for