Etymology
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Chinook

name for a group of related native people in the Columbia River region of Washington and Oregon, from Salishan /činuk/, name of a village site [Bright]. The name was extended to a type of salmon (1851) and a warm spring wind in that region (1860). Chinook jargon was a mishmash of native (Chinook and Nootka), French, and English words; it once was the lingua franca in the Pacific Northwest, and this sense is the earliest attested use of the word (1840).

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Definitions of Chinook
1
chinook (n.)
a warm dry wind blowing down the eastern slopes of the Rockies;
Synonyms: chinook wind / snow eater
chinook (n.)
pink or white flesh of large Pacific salmon;
Synonyms: chinook salmon / king salmon
chinook (n.)
large Pacific salmon valued as food; adults die after spawning;
Synonyms: chinook salmon / king salmon / quinnat salmon / Oncorhynchus tshawytscha
2
Chinook (n.)
a member of an important North American Indian people who controlled the mouth of the Columbia river; they were organized into settlements rather than tribes;
Chinook (n.)
a Penutian language spoken by the Chinook;
Synonyms: Chinookan
From wordnet.princeton.edu