Italian nouns (i nomi) always end in a vowel.
All nouns in Italian have a gender (il genere); they are either masculine or feminine, even those referring not to people but to things, qualities, or ideas.
Generally, nouns ending in -o are masculine:
l’amico (friend), il bambino (kid), il treno (train).
And nouns ending in –a/à or ù are feminine:
l’amica (female friend), la bambina (female kid), la sincerità (sincerity).
Nouns ending in –e/è may be masculine or feminine.
The gender of these nouns must be memorized.
masculine: lo studente (student), il ristorante (restaurant), il caffè (coffee).
feminine: l’automobile (car), la notte (night), l’arte (art).
Nouns ending in –i/ì may be masculine or feminine. The gender of these nouns must be memorized.
masculine nouns: lo sci (ski), il brindisi (toast), il lunedì (Monday).
feminine nouns: l’oasi (oasi), l’analisi (analysis).
Nouns that end in a consonant are of foreign origin and they are usually masculine: il bar, l’autobus (bus), il film, lo sport.
The plural form
Italian nouns change their vowel endings to indicate a change in number. As we have seen, these ones are the endings of singular nouns:
-à; -è; -ì; -ù
In the chart below, you can see how to form the plural of a noun which has one of these endings: