Usages of o artigo
Na biblioteca, ele achou uma revista chata, mas encontrou um artigo interessante sobre um professor muito inteligente.
In the library, he found a boring magazine, but found an interesting article about a very intelligent teacher.
Geralmente o jornal publicará um artigo sobre o mesmo assunto, com a opinião de vários leitores.
Generally the newspaper will publish an article about the same topic, with the opinion of several readers.
Eu quero publicar um artigo no jornal.
I want to publish an article in the newspaper.
Elon.io is an online learning platform
We have an entire course teaching Portuguese grammar and vocabulary.