ballyhoo vs packaging

ballyhoo and packaging both are nouns.

Word	Noun	Adjective	Verb	Adverb
ballyhoo	Yes	No	Yes	No
packaging	Yes	No	No	No

As nouns, packaging is a hypernym of ballyhoo; that is, packaging is a word with a broader meaning than ballyhoo:

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

Other hypernyms of ballyhoo include promo, promotion, promotional material, publicity.

ballyhoo (noun)	packaging (noun)
blatant or sensational promotion	the business of packing
	material used to make packages
	a message issued in behalf of some product or cause or idea or person or institution

ballyhoo (verb)	packaging (verb)
advertize noisily or blatantly