from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A Native American people formerly inhabiting the lower Columbia River valley and adjoining coastal regions of Washington and Oregon, now located in western Washington. The Chinook traded widely throughout the Pacific Northwest.
- n. A member of this people.
- n. The Chinookan language of the Chinook.
- n. Any of various Chinookan-speaking peoples formerly inhabiting the Columbia River valley eastward to The Dalles and now located in southern Washington and northern Oregon.
- n. A member of any of these peoples.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A Native American language of the Penutian family of Oregon and Washington.
Chehalis (Salishan language of western Washington) c'inúk.(American Heritage® Dictionary of the English Language, Fourth Edition)