Zuppa vs. minestra
While both zuppa and minestra can be translated as soup in English, they refer to distinct types of dishes in Italian cuisine. The main difference lies in the presence or absence of a starchy ingredient like pasta or rice, which fundamentally changes the nature of the dish.
Zuppa
A1A zuppa is a broth-based soup containing chunks of vegetables, legumes, meat, or fish. Critically, it does not contain pasta or rice. The name comes from the Gothic word suppa, meaning a slice of bread soaked in broth, as it was traditionally served poured over slices of stale bread placed at the bottom of the bowl. The bread soaks up the liquid and adds substance.
Per cena ho preparato una zuppa di fagioli e cavolo nero.
(For dinner, I prepared a soup with beans and black cabbage.)
La zuppa di pesce è una specialità di molte città costiere.
(Fish soup is a specialty of many coastal cities.)
Metti una fetta di pane tostato sul fondo del piatto prima di versare la zuppa di cipolle.
(Put a slice of toasted bread at the bottom of the dish before pouring the onion soup.)
Questa zuppa di lenticchie è perfetta per una fredda giornata invernale.
(This lentil soup is perfect for a cold winter day.)
Minestra
A2A minestra is a broader term for a soup that serves as a first course (primo piatto) and must contain a starchy element like pasta, rice, or grains (such as barley or farro), which are cooked directly within the broth alongside the vegetables. The famous hearty minestrone is a type of minestra. Essentially, if the soup has pasta or rice in it, it's a minestra.
La nonna fa una deliziosa minestra di verdure con la pasta.
(Grandma makes a delicious vegetable soup with pasta.)
Una minestra di riso e piselli è un classico piatto confortante.
(A soup with rice and peas is a classic comfort food dish.)
Quando sono malato, mangio solo una minestra in brodo con le stelline.
(When I'm sick, I only eat a soup in broth with small star-shaped pasta.)
In montagna preparano un'ottima minestra di orzo e patate.
(In the mountains, they prepare an excellent soup with barley and potatoes.)
Summary
In short, the key difference is the starch. A minestra always contains pasta, rice, or grains cooked in the broth. A zuppa never contains these ingredients; instead, its substance traditionally comes from bread added to the bowl before serving. So, if you see pasta or rice floating among the vegetables, you are eating a minestra; if it's a brothy mix of vegetables served over bread (or without any starch), it's a zuppa.