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Chinook jargon,lingua francalingua franca
, an auxiliary language, generally of a hybrid and partially developed nature, that is employed over an extensive area by people speaking different and mutually unintelligible tongues in order to communicate with one another.
..... Click the link for more information. of early traders on the Northwest Coast of the United States and Canada. It included Chinook, Nootka, English, and French words, with various borrowings.