roman letters vs roman print

roman letters and roman print both are nouns.

Word	Noun	Adjective	Verb	Adverb
roman letters	Yes	No	No	No
roman print	Yes	No	No	No

As nouns, roman letters and roman print are synonyms defined as:

roman letters and roman print: a typeface used in ancient Roman inscriptions

Other synonyms of roman letters include roman, roman type.

roman letters (noun)	roman print (noun)
a typeface used in ancient Roman inscriptions	a typeface used in ancient Roman inscriptions