Plurals

The boy, the girl, and the elephant
You've already seen how in Italian usually feminine words (like ragazza) end in ‑e in the plural, and masculine words (like ragazzo) end in ‑i.

However, there are also some
nouns that end in ‑e (like animale) in the singular.
These nouns end in ‑i in the plural (animali).
singularplural
la ragazzale ragazze
il ragazzoi ragazzi
il giornalei giornali
l'elefantegli elefanti
Gli elefanti bevono acqua.
The elephants drink water.
Tragically, like in English, some Italian words have completely crazy plurals. For example, you're already familiar with l’uomo and its special plural form gli uomini.
Silent but deadly
At the beginning of a word, the letter h is silent in Italian.
ho
ho, ha (silent h, as in hour)
But when h follows c or g, it changes the sound of these letters.
cuochi
cuochi, forchetta (ch sounds like k, as in kit)
ghiaccio
ghiaccio, funghi (gh sounds like the g in get)
Put an h in it
Usually, when forming the plural of a noun, you want to keep the same sound as in the original word.
Because c + ‑i and c + ‑e (as in cibo and cena) would change the sound of ‑co and ‑ca, you'll need to add an h in between to block the sound change.
singularplural
il cuocoi cuochi
la muccale mucche
The same happens with g + ‑i and g + ‑e (as in mangi and gelato) because they'd sound different from ‑go and ‑ga.
singularplural
il fungoi funghi
So remember that the plural forms of words that end in ‑co, ‑ca, ‑go, and ‑ga usually include an h.
Loro sono cuochi.
They are cooks.