- well-established language family of the Pacific Northwest of North America
- 23 languages in B.C., Washington State, Oregon, Idaho, and western Montana
- most languages in the family are severely endangered
- well-known for large consonantal inventories and complex clusters of obstruents
- also known for a weak distinction between nouns and verbs
- most languages in the family have few or no bare transitive verbs and make use of a large inventory of valency-regulating affixes
- languages also make use of a variety of lexical suffixes—bound morphemes refering to bodyparts, plants, animals, materials, and implements
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