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
back-to-back
something follows immediately after something else, two people touching backs
There were two back-to-back games today because of the rain last week. We sat back-to-back during the contest.