synchronizing vs synchronicity

synchronizing and synchronicity both are nouns.

Word	Noun	Adjective	Verb	Adverb
synchronizing	Yes	No	No	No
synchronicity	Yes	No	No	No

As nouns, synchronizing and synchronicity are synonyms defined as:

synchronizing and synchronicity: the relation that exists when things occur at the same time

Other synonyms of synchronizing include synchroneity, synchronisation, synchronism, synchronization, synchrony.

synchronizing (noun)	synchronicity (noun)
coordinating by causing to indicate the same time	the relation that exists when things occur at the same time
an adjustment that causes something to occur or recur in unison
the relation that exists when things occur at the same time