sync vs synchronise

sync and synchronise both are verbs.

Word	Noun	Adjective	Verb	Adverb
sync	No	No	Yes	No
synchronise	No	No	Yes	No

As verbs, sync and synchronise are synonyms defined as:

Other synonyms of sync include synchronize.

sync (verb)	synchronise (verb)
make synchronous and adjust in time or manner	make synchronous and adjust in time or manner
	operate simultaneously
	cause to indicate the same time or rate
	arrange or represent events so that they co-occur
	make (motion picture sound) exactly simultaneous with the action
	happen at the same time