advertisement vs advertizing

advertisement and advertizing both are nouns.

Word	Noun	Adjective	Verb	Adverb
advertisement	Yes	No	No	No
advertizing	Yes	No	No	No

As nouns, advertisement and advertizing are synonyms defined as:

advertisement and advertizing: a public promotion of some product or service

Other synonyms of advertisement include ad, advert, advertising, advertizement.

advertisement (noun)	advertizing (noun)
a public promotion of some product or service	a public promotion of some product or service