Tags: Language.
The Lihir language is an Austronesian language spoken in the Lihir island group in New Ireland Province Papua New Guinea. It is notable for having 5 levels of grammatical number: singular dual trial paucal and plural. It is questionable whether the trial is indeed trial or whether it is paucal leaving there being a paucal and a greater paucal. Either way this is the highest number of levels of grammatical number in any language.