Do you guys recommend some link or site for downloading LaTeX dictionaries? Specifically, I need the Portuguese (Brazilian) one.

  • 1
    You are looking for a spell checker. LaTeX does not spell-check, never. You may find a LaTeX editor that includes spell-checking tough. – Johannes_B Aug 8 '15 at 14:09

It is not clear what "LaTeX dictionary" refers to. Therefore I will treat some possibilities:

  • a way to tell LaTeX to use "Figura" instead of "Figure" (and the like), use the correct hyphenation rules and language-specific typographic rules etc. (see e.g. https://en.wikibooks.org/wiki/LaTeX/Internationalization). To accomplish this, packages like babel (\usepackage[brazilian]{babel}) or polyglossia were created and already include their "dictionaries".

  • a spell checker: While LaTeX itself does no spell checking, some LaTeX editors provide spell checking (and indeed need dictionaries to provide this feature), see for example: How to add Spell Checker to TeXworks on Windows.

  • a dictionary in Brazilian and written in LaTeX (of course you would like to see the source code and not only the resulting pdf): While I am not aware of any freely available BrazilianDictionary.tex, the multicol package could be useful (see also https://www.sharelatex.com/learn/Multiple_columns) as well as the thumbs package and of course hyperref for cross-referencing.

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