Wiktionary:List of languages/special

This page lists languages by any particular property that they may have.

Not allowed in main namespace
These languages are not permitted to have entries in the main namespace, only in the Appendix or Reconstruction namespaces.

With sort key or diacritic removal
These languages have the  and/or   value set. These properties are used to generate a sort key or an entry name, by removing diacritics and the like.