Added 9 October 2026 superfamily noun Categories: SocietyRare Words noun ! Definition from WordNet 3.1, Princeton University. More about superfamily at Wordnik → Where our words come from → (biology) a taxonomic group ranking below an order but above a family. Related Words: superphylumparvordersubphylumsubgenussubsectionsectionphylumdivisionsubformvarietyseriessupercohort Back to today's word