UK TeX FAQ -- question label latexwords

### Changing the words babel uses

LaTeX uses symbolic names for many of the automatically-generated text it produces (special-purpose section headings, captions, etc.). As noted in "\LaTeX fixed names" (which includes a list of the names themselves), this enables the user to change the names used by the standard classes, which is particularly useful if the document is being prepared in some language other than LaTeX's default English. So, for example, a Danish author may wish that her table of contents was called "Indholdsfortegnelse", and so would expect to place a command

    \renewcommand{\contentsname}%
        {Indholdsfortegnelse}

in the preamble of her document.

However, it's natural for a user of a non-English language to use babel, because it offers many conveniences and typesetting niceties for those preparing documents in those languages. In particular, when babel is selecting a new language, it ensures that LaTeX's symbolic names are translated appropriately for the language in question. Unfortunately, babel's choice of names isn't always to everyone's choice, and there is still a need for a mechanism to replace the 'standard' names.

Whenever a new language is selected, babel resets all the names to the settings for that language. In particular, babel selects the document's main language when `\``begin{document}` is executed, which immediately destroys any changes to these symbolic names made in the prologue of a document that uses babel.

Therefore, babel defines a command to enable users to change the definitions of the symbolic names, on a per-language basis: `\``addto``\``captions``<language>` is the thing (`<language>` being the language option you gave to babel in the first place). For example:

    \addto\captionsdanish{%
      \renewcommand{\contentsname}%
        {Indholdsfortegnelse}%
    }

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