hoopla vs promo

hoopla and promo both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoopla	Yes	No	No	No
promo	Yes	No	No	No

As nouns, promo is a hypernym of hoopla; that is, promo is a word with a broader meaning than hoopla:

hoopla: blatant or sensational promotion
promo: a message issued in behalf of some product or cause or idea or person or institution

Other hypernyms of hoopla include packaging, promotion, promotional material, publicity.

hoopla (noun)	promo (noun)
blatant or sensational promotion	a message issued in behalf of some product or cause or idea or person or institution