advertising vs publicizing

advertising and publicizing both are nouns.

Word	Noun	Adjective	Verb	Adverb
advertising	Yes	No	No	No
publicizing	Yes	No	No	No

As nouns, advertising and publicizing are synonyms defined as:

advertising and publicizing: the business of drawing public attention to goods and services

Other synonyms of advertising include merchandising.

advertising (noun)	publicizing (noun)
the business of drawing public attention to goods and services	the business of drawing public attention to goods and services
a public promotion of some product or service