synchronise vs pass off

synchronise and pass off both are verbs.

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

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

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

synchronise (verb)	pass off (verb)
make synchronous and adjust in time or manner	expel (gases or odors)
operate simultaneously	come to pass
cause to indicate the same time or rate	disappear gradually
arrange or represent events so that they co-occur	disregard
make (motion picture sound) exactly simultaneous with the action	cause to be circulated and accepted in a false character or identity
happen at the same time	be accepted as something or somebody in a false character or identity