adj. Of or pertaining to Rome, or the Roman people; like or characteristic of Rome, the Roman people, or things done by Romans.adj. Of or pertaining to the Roman Catholic religion; professing that religion.adj. adj. Upright; erect; -- said of the letters or kind of type ordinarily used, as distinguished from Italic characters.adj. Expressed in letters, not in figures, as I., IV., i., iv., etc.; -- said of numerals, as distinguished from the Arabic numerals, 1, 4, etc.n. A native, or permanent resident, of Rome; a citizen of Rome, or one upon whom certain rights and privileges of a Roman citizen were conferred.n. Roman type, letters, or print, collectively; -- in distinction from Italics.