sensationalist vs publiciser

sensationalist and publiciser both are nouns.

Word	Noun	Adjective	Verb	Adverb
sensationalist	Yes	No	No	No
publiciser	Yes	No	No	No

As nouns, publiciser is a hypernym of sensationalist; that is, publiciser is a word with a broader meaning than sensationalist:

sensationalist: someone who uses exaggerated or lurid material in order to gain public attention
publiciser: someone who publicizes

Other hypernyms of sensationalist include publicist, publicizer.

sensationalist (noun)	publiciser (noun)
someone who uses exaggerated or lurid material in order to gain public attention	someone who publicizes