promo vs promotional material

promo and promotional material both are nouns.

Word	Noun	Adjective	Verb	Adverb
promo	Yes	No	No	No
promotional material	Yes	No	No	No

As nouns, promo and promotional material are synonyms defined as:

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

Other synonyms of promo include packaging, promotion, publicity.

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