An Italian plural is a plural formed according to the language rules of Italian. These, obviously, are most commonly found in Italian itself. However, there are a small number of Italian loans to English.
Italian nouns are either masculine or feminine. Plurals are formed by inflection, as follows:
|Gender||Singular ending||Plural ending||Example(s)|
|Masculine||-o,||-i (rarely, -a)||
Often Italian loans are given regular English plurals, e.g. Italian pizza-pizze, but English pizza-pizzas.
Often however, the plurals are either (1) treated as mass nouns or (2) treated as singular.
In English, graffiti is treated as a mass noun, not as a plural, though in Italian it is plural. [Other examples]