n.
1.a group of Amerindian languages (the name coined by an American anthropologist, Edward Sapir)
2.a member of any of the North American Indian groups speaking an Athapaskan language and living in the subarctic regions of western Canada and central Alaska
Idiom of the Day
muscle in on (someone or something)
to forcefully try to discipline someone or take over someone's property or business
The large supermarket was trying to muscle in on the business of the small shops.