Reference material
dictionaries, encyclopedias, glossaries and grammars
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Did you know there are free dictionaries and grammars online? Here are a few suggestions.
Aviation Glossaries & Encyclopedias
Aviation Glossaries & Encyclopedias
General English Dictionaries
General English Dictionaries
Read simple definitions in English, see example sentences and listen to the pronunciation of the word. Also: grammar tips and common mistakes!
Look up a translation of a Portuguese word into English or vice-versa. If you go to the English only version, you can also find simple definitions, example sentences, and the pronunciation.
Cambridge English>Portuguese Dictionary
Read simple definitions in English, find out the translation of the word in Portuguese, see example phrases and listen to the pronunciation of the word.Also available as an English-only dictionary!
Look up a translation of a Portuguese word into English and vice-versa. Some phrases.
Grammar Guides
Grammar Guides
BBC Learning English
Grammar Reference
Simple explanations with examples of basic, intermediate, and upper intermediate grammar
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