This is a list of curated resources for Brazilian Portuguese learners. All of them are free, and many of my students use them on a daily basis, whether it's for sentence mining, looking up words, or checking the conjugation of one of those creepy verbs.
Bilingual Dictionaries
Recommended for those who are just starting out on their journey in the Portuguese language. You can use the resources below to search for word definitions and translations, along with examples in sentences.
1. Linguee Dictionary
My go-to when I need to quickly search for definitions and examples. A dictionary with definitions and lots of sentences as examples.
2. Reverso Dictionary
Another dictionary with lots of examples of a word in a sentence and also their individual meaning.
3. Tatoeba.org
Although not a dictionary, you can find great examples from native speakers there. Especially if you want to see how a specific word fits into a sentence, Tatoeba has 12,868,608 sentences in more than 428 languages, including Brazilian Portuguese. Some of them include audio recordings from native speakers. I myself contribute there in my free time.
Monolingual Dictionaries
If you can already read Portuguese and want to use Portuguese to learn Portuguese, you should use the resources below whenever you need to find out what a word means.
1. Caldas Aulete
Monolingual dictionary for the Brazilian Portuguese language, it contains a lot of examples and clear explanations in Portuguese.
2. Michaelis
Great definitions and examples, it also includes a popular idiomatic expression based on the word searched (not always happens though).
3. Dicionário Informal
The Brazilian version of Urban Dictionary. You will find street Brazilian Portuguese and very regional expressions, such as lá ele. Keep in mind that they are very regional and so if you decide to use them, people from other regions may not understand what you mean.
Etymology
One of the best resources out there! If you've ever been fooled by a false friend when learning a new language, this is a great place to find out how one of the two words lost its original meaning. It's also great for connecting it to words you already know in your native language or other languages you speak.
1. Wiktionary
A great tool for finding out more about a word’s origins and how it relates to another language.
Books
1. Baixe Livros
Free downloadable e-books, works from famous Portuguese and Brazilian authors. Wide range of ages (good to test your current level of Portuguese).
Verbs
1. Conjugação.com
Want to know how a verb is conjugated?