(Category:Languages by country). See also Wiktionary:Language categories. Shortcut: WT:<span class="searchmatch">TOPICCAT</span> Where useful, words are categorized by topic such as "Animals" or "Chemistry"...
{{catlangcode}} is pretty bad too, but that could be changed to {{cat}} or {{<span class="searchmatch">topiccat</span>}}; the template is only intended for topical categories, from what I understand...
vocabularies, but the way it's implemented now is half-hearted. The section WT:<span class="searchmatch">TOPICCAT</span> is very bare bones. I'm missing some kind of formulation of a philosophy...