The term 'member of the weasel family' refers to a group of animals that includes the otter (5 letters), STOAT (5 letters), ERMINE (6 letters), SABLE (5 letters), MINK (4 letters), and BADGER (6 letters). These animals are all members of the Mustelidae family, which is a diverse group of carnivorous mammals that includes weasels, ferrets, martens, and wolverines. They are typically small animals with long, slender bodies and short legs. The fur of some species, such as the ERMINE and SABLE, is highly valued for its softness and warmth.