promo vs packaging

promo and packaging both are nouns.

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

As nouns, promo and packaging are synonyms defined as:

promo and packaging: a message issued in behalf of some product or cause or idea or person or institution

Other synonyms of promo include promotion, promotional material, publicity.

promo (noun)	packaging (noun)
a message issued in behalf of some product or cause or idea or person or institution	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