This category is triggered by the language infobox if 'speakers' is set to "none". An exception is made for familycolor=Pidgin, as pidgins have no native speakers. Other articles usefully placed here are supplementary sign languages, as in Australia (though some of these may be native to deaf members, or hearing children may be natively bilingual), liturgical languages, written standards, and conlangs. If a language once did have native speakers, but no longer, then the 'extinct' field should be used.