Spesa vs. generi alimentari
The Italian words spesa and generi alimentari both translate to groceries in English, but they belong to very different registers and contexts. The word spesa is the common, everyday term used to talk about the items you buy at the supermarket or the actual chore of shopping. Conversely, generi alimentari is a formal, descriptive phrase meaning foodstuffs or food products, mostly used in business, logistics, or official contexts.
Spesa
The word spesa refers to the everyday groceries you purchase for your home, and it is also used to describe the actual activity of going grocery shopping.
Devo fare la spesa per la cena di stasera.
(I need to get the groceries for dinner tonight.)
Ho lasciato la spesa nel bagagliaio della macchina.
(I left the groceries in the trunk of the car.)
Le borse della spesa sono troppo pesanti per portarle a mano.
(The grocery bags are too heavy to carry by hand.)
Mia madre va a fare la spesa ogni sabato mattina al mercato.
(My mother goes grocery shopping every Saturday morning at the market.)
Abbiamo speso quasi cento euro per la spesa di questa settimana.
(We spent almost one hundred euros on groceries for this week.)
Generi alimentari
The expression generi alimentari is a formal and technical term that translates to foodstuffs or edible goods, commonly seen on shop signs, in economic reports, or in official regulations.
C'è un piccolo negozio di generi alimentari all'angolo della strada.
(There is a small grocery store at the corner of the street.)
I prezzi dei generi alimentari sono aumentati molto a causa dell'inflazione.
(The prices of food products have increased a lot due to inflation.)
Durante l'emergenza, il governo ha distribuito generi alimentari alle famiglie in difficoltà.
(During the emergency, the government distributed foodstuffs to families in need.)
Questo camion trasporta esclusivamente generi alimentari verso i supermercati della regione.
(This truck exclusively transports food products to the supermarkets in the region.)
La nuova tassa non si applica ai generi alimentari di prima necessità.
(The new tax does not apply to basic grocery items.)
Summary
To summarize, you should use spesa in everyday conversation when talking about the chore of buying food or the bags of groceries you bring home. You should reserve generi alimentari for formal situations, official writing, economic discussions, or when referring to food products as a broad commercial category.