This document is a reference sheet charting when and how the definite article and indefinite article are used or not used in Portuguese with nouns they qualify. The definite article corresponds to the English “the” and refers to a specific noun or nouns (e.g., “Have you laid the table?”) The indefinite article, corresponds to the English “a/an”. It can also translate as “some” or “any” in Portuguese. It refers to a non-specific noun or nouns (e.g., I bought a book).