synchronizing vs synchronism

synchronizing and synchronism both are nouns.

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

As nouns, synchronizing and synchronism are synonyms defined as:

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

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

synchronizing (noun)	synchronism (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