And Chinook is the language (not spoken today) of the Chinook aboriginal people in Washington state.

The Chinook jargon is a different language (technically a creole, not a fully developed language) used for communication and trade between widely different linguistic groups of western North America, and with Europeans. Words were borrowed from Salish, French and English, and various other sources. At one time it could easily have become the official language of British Columbia, but English won out instead.