A group intermediate between a family and a suborder.

(biology) a taxonomic group ranking below an order but above a family

In linguistics, a superfamily (or macrofamily) is a phyletic unit encompassing several language families. The term is generally used for conjectural families, e.g. the Nostratic, Dené-Caucasian, Altaic, and Proto-World groupings. The term is typically invoked to describe theoretical associations between established language families (e.g. between Turkic, Mongolic, and Tungusic languages, and often – but not always – Korean and Japonic, in the case of Altaic), and has come to carry a connotation of hypothesis, and therefore, controversy.

A group of functionally or structurally related proteins.

A collection of genes, all products of gene duplication, that have diverged from each other to a considerable extent (in protein-coding genes, usually a similarity of less than 50% at the amino acid level).