Je veux du pain.
English: I want some bread.
Partitive articles in French are words used to talk about an unspecified quantity of something, usually food, drink, or other uncountable items. They are similar to saying 'some' or 'any' in English.
Use partitive articles when you talk about an unknown or uncountable amount of something, especially with food and drink. For example, when you want to say you are eating some bread or drinking some water, not the whole thing.
Je veux du pain.
English: I want some bread.
Elle boit de l'eau.
English: She drinks some water.
Nous mangeons de la salade.
English: We are eating some salad.
Ils achètent des fruits.
English: They are buying some fruits.